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A Hands-On Application of Homography: IPM | by Daryl Tan | Towards Data Science | In computer vision, homography is a transformation matrix H when applied on a projective plane maps it to another plane (or image). In the case of Inverse Perspective Mapping (IPM), we want to produce a birds-eye view image of the scene from the front-facing image plane.
In the field of autonomous driving, IPM aids in ... | [
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"text": "In computer vision, homography is a transformation matrix H when applied on a projective plane maps it to another plane (or image). In the case of Inverse Perspective Mapping (IPM), we want to produce a birds-eye view image of the scene from the front-fac... |
Get the number of siblings of a node in JTree with Java | Use the getSiblingCount() method to get the number of siblings of a node in JTree. For example, let’s say we have a node, which isn’t a root node. For that, we will find the sibling count −
node1.getSiblingCount()
The following is an example to get the number of siblings of a node −
package my;
import javax.swing.JFram... | [
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"text": "Use the getSiblingCount() method to get the number of siblings of a node in JTree. For example, let’s say we have a node, which isn’t a root node. For that, we will find the sibling count −"
},
{
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"... |
Ruby on Rails - Layouts | A layout defines the surroundings of an HTML page. It's the place to define a common look and feel of your final output. Layout files reside in app/views/layouts.
The process involves defining a layout template and then letting the controller know that it exists and to use it. First, let's create the template.
Add a ne... | [
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"text": "A layout defines the surroundings of an HTML page. It's the place to define a common look and feel of your final output. Layout files reside in app/views/layouts."
},
{
"code": null,
"e": 2415,
"s": 2266,
"text": "The process involve... |
The easiest way to plot data from Pandas on a world map | by Udi Yosovzon | Towards Data Science | This guide is intended to be quick and easy, with the least amount of words and least amount of code, to show you how to plot data from a Pandas object on a world map using Matplotlib and Geopandas libraries.
The python libraries you need to install are pandas, geopandas and matplotlib. You can find the code for this t... | [
{
"code": null,
"e": 381,
"s": 172,
"text": "This guide is intended to be quick and easy, with the least amount of words and least amount of code, to show you how to plot data from a Pandas object on a world map using Matplotlib and Geopandas libraries."
},
{
"code": null,
"e": 566,
... |
PyQt5 - Message Box - GeeksforGeeks | 23 Sep, 2021
In this article, we will discuss the Message Box Widget of the PyQT5 module. It is used to display the message boxes. PyQt5 is a library used to create GUI using the Qt GUI framework. Qt is originally written in C++ but can be used in Python. The latest version of PyQt5 can be installed using the command:
... | [
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},
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"code": null,
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"text": "In this article, we will discuss the Message Box Widget of the PyQT5 module. It is used to display the message boxes. PyQt5 is a library used to create GUI using t... |
How to read json array in reverse order in android? | This example demonstrate about How to read json array in reverse order in android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?>
<Lin... | [
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"text": "This example demonstrate about How to read json array in reverse order in android."
},
{
"code": null,
"e": 1274,
"s": 1145,
"text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required det... |
How to divide each value in a data frame by column total in R? | To divide each value in a data frame by column total, we can use apply function and define the function for the division. For example, if we have a data frame called df that contains five columns then we can divide each value of these columns by column total using the command apply(df,2,function(x){x/sum(x)})
Consider ... | [
{
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"text": "To divide each value in a data frame by column total, we can use apply function and define the function for the division. For example, if we have a data frame called df that contains five columns then we can divide each value of these columns by column ... |
Comparing the Feature Extraction Algorithms for Images | by Sam Bell | Towards Data Science | There are many algorithms out there dedicated to feature extraction of images. Many of them work similarly to a spirograph, or a Roomba. The little bot goes around the room bumping into walls until it, hopefully, covers every speck off the entire floor. Similarly, an algorithm will travel around an image picking up int... | [
{
"code": null,
"e": 591,
"s": 172,
"text": "There are many algorithms out there dedicated to feature extraction of images. Many of them work similarly to a spirograph, or a Roomba. The little bot goes around the room bumping into walls until it, hopefully, covers every speck off the entire floor. S... |
Area of a Regular Pentagram - GeeksforGeeks | 04 Aug, 2021
Given a Pentagram and it’s inner side length(d). The task is find out area of Pentagram. The Pentagram is a five-pointed star that is formed by drawing a continuous line in five straight segments.
Examples:
Input: d = 5 Output: Area = 139.187 Area of regular pentagram = 139.187
Input: d = 7 Output: Area ... | [
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},
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"code": null,
"e": 24438,
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"text": "Given a Pentagram and it’s inner side length(d). The task is find out area of Pentagram. The Pentagram is a five-pointed star that is formed by drawing a continuou... |
How to Show Percentage in Pie Chart in Excel? - GeeksforGeeks | 29 Jun, 2021
Pie charts are mostly used as it is more appealing and easy to understand for any type of audience. It is divided into various parts and each part of pie charts denotes a subcategory of the original data set. This sub-category data is sometimes shown using the original values or sometimes using percentages... | [
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"text": "\n29 Jun, 2021"
},
{
"code": null,
"e": 25260,
"s": 24897,
"text": "Pie charts are mostly used as it is more appealing and easy to understand for any type of audience. It is divided into various parts and each part of pie charts de... |
How can I generate random integers between 0 and 9 using Python? | The randint() function in a random module returns a randomly generated integer in the given range. To obtain a random integer between 0 to 9,
>>> import random
>>> random.randint(0,9)
0
>>> random.randint(0,9)
5
>>> random.randint(0,9)
6
>>> random.randint(0,9)
8 | [
{
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"text": "The randint() function in a random module returns a randomly generated integer in the given range. To obtain a random integer between 0 to 9,"
},
{
"code": null,
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"text": ">>> import random\n>>> random.randint(0,... |
9 Tips That Helped Me Clear All HackerRank SQL Challenges in 2 Weeks | by Michael Li | Towards Data Science | Current projects at work require more SQL skills, so I took the time to brush up my SQL knowledge using the HackerRank coding challenges platform. It took me a bit more than two weeks (on and off between work, workout, and taking the kid to day school, etc.) to finish all the 58 SQL challenges on the site, and I gained... | [
{
"code": null,
"e": 1128,
"s": 172,
"text": "Current projects at work require more SQL skills, so I took the time to brush up my SQL knowledge using the HackerRank coding challenges platform. It took me a bit more than two weeks (on and off between work, workout, and taking the kid to day school, e... |
Java String toCharArray() with example - GeeksforGeeks | 04 Dec, 2018
The java string toCharArray() method converts the given string into a sequence of characters. The returned array length is equal to the length of the string.
Syntax :
public char[] toCharArray()
Return : It returns a newly allocated character array.
// Java program to demonstrate// working of toCharArr... | [
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},
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"code": null,
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"text": "The java string toCharArray() method converts the given string into a sequence of characters. The returned array length is equal to the length of the string."
},... |
Total length of string from given Array of strings composed using given characters - GeeksforGeeks | 31 Oct, 2021
Given a list of characters and an array of strings, find the total length of all strings in the array of strings that can be composed using the given characters.Examples:
Input: string = [“mouse”, “me”, “bat”, “lion”], chars = “eusamotb” Output: 10 Explanation: The strings that can be formed using the ch... | [
{
"code": null,
"e": 25328,
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"text": "\n31 Oct, 2021"
},
{
"code": null,
"e": 25501,
"s": 25328,
"text": "Given a list of characters and an array of strings, find the total length of all strings in the array of strings that can be composed using the given characters.Ex... |
Basic Object Oriented Data Model - GeeksforGeeks | 10 Dec, 2021
Need of Object Oriented Data Model : To represent the complex real world problems there was a need for a data model that is closely related to real world. Object Oriented Data Model represents the real world problems easily.
Object Oriented Data Model : In Object Oriented Data Model, data and their relati... | [
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"text": "\n10 Dec, 2021"
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"code": null,
"e": 24163,
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"text": "Need of Object Oriented Data Model : To represent the complex real world problems there was a need for a data model that is closely related to real world. Object O... |
Clicking an element using javascript vs actions vs webdriver? | We can click on an element using javascript, Actions class and webdriver methods. Selenium can execute commands in Javascript with the help of the execute_script() method.
We have to import org.openqa.selenium.JavascriptExecutor in our code to work with a javascript executor. In order to click an element, first we have... | [
{
"code": null,
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"s": 1062,
"text": "We can click on an element using javascript, Actions class and webdriver methods. Selenium can execute commands in Javascript with the help of the execute_script() method."
},
{
"code": null,
"e": 1507,
"s": 1234,
"text": "We have to... |
Find the element at given index | Practice | GeeksforGeeks | Given an array Arr[] of N elements. Perform K right circular rotations on given ranges [L...R]. After performing these rotations, we need to find element at a given index X.
Example 1:
Input:
N = 5, X = 1, K = 2
Arr[] = {1, 2, 3, 4, 5}
Ranges[][] = {{0, 2}, {0, 3}}
Output: 3
Explanation: Rotating the elements in range ... | [
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},
{
"code": null,
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"text": "Example 1:"
... |
Easy Text-to-Speech with Python. Text to Speech | by Dhilip Subramanian | Towards Data Science | Text-to-speech (TTS) technology reads aloud digital text. It can take words on computers, smartphones, tablets and convert them into audio. Also, all kinds of text files can be read aloud, including Word, pages document, online web pages can be read aloud. TTS can help kids who struggle with reading. Many tools and app... | [
{
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"text": "Text-to-speech (TTS) technology reads aloud digital text. It can take words on computers, smartphones, tablets and convert them into audio. Also, all kinds of text files can be read aloud, including Word, pages document, online web pages can be read aloud... |
Understanding Word Embeddings from scratch | LSTM model | | by Manik Soni | Towards Data Science | Yo reader! I am Manik. What’s up?.
Hope you’re doing great and working hard for your goals. If not, it’s never late. Start now, at this very moment.
With this piece of information, you’ll walk away with a clear explanation on Sequence and Text processing for Deep Neural Networks which includes:
What’s one-hot Encoding?... | [
{
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"text": "Yo reader! I am Manik. What’s up?."
},
{
"code": null,
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"s": 207,
"text": "Hope you’re doing great and working hard for your goals. If not, it’s never late. Start now, at this very moment."
},
{
"code": null,
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GATE CS 2012 - GeeksforGeeks | 11 Oct, 2021
BCNF is a stronger version 3NF. So every relation in BCNF will also be in 3NF.
No choice
Choice A
Choice A
Choice B No choice
Program gives no output as it is erroneous
int main()
{
char inchar = 'A';
switch (inchar)
{
case 'A' :
printf ("choice A \n") ;
case 'B' :
{
... | [
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"text": "\n11 Oct, 2021"
},
{
"code": null,
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"text": "BCNF is a stronger version 3NF. So every relation in BCNF will also be in 3NF."
},
{
"code": null,
"e": 27308,
"s": 27298,
"text": "No choice"
... |
SELECT where row value contains string in MySQL? | To select the row value containing string in MySQL, use the following syntax.
SELECT *FROM yourTableName where yourColumnName like ‘%yourPattern%’;
To understand the above syntax, let us first create a table. The query to create a table is as follows.
mysql> create table PatternDemo
-> (
-> Id int,
-> Name varchar(100)... | [
{
"code": null,
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"text": "To select the row value containing string in MySQL, use the following syntax."
},
{
"code": null,
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"s": 1140,
"text": "SELECT *FROM yourTableName where yourColumnName like ‘%yourPattern%’;"
},
{
"code": null,
"e... |
Data Analysis and Visualization Just Got Better — Mito Adds 5 Features You Should Try | by Dario Radečić | Towards Data Science | Disclaimer: This is not a sponsored article. I don’t have any affiliation with Mito or the creators of the library. The article shows an unbiased overview of the library, intending to make data science tools accessible to the broader masses.
Trying to keep up with the most recent data science libraries is like trying t... | [
{
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"text": "Disclaimer: This is not a sponsored article. I don’t have any affiliation with Mito or the creators of the library. The article shows an unbiased overview of the library, intending to make data science tools accessible to the broader masses."
},
{
... |
How to move one DIV element inside another using jQuery ? - GeeksforGeeks | 23 Apr, 2021
In this article, we will learn to move one HTML div element inside another using jQuery.
The HTML div element is used to define a division or a section in an HTML document.
Method used:
parent(): This method is used to get the parent of each element in the current set of matched elements, optionally fil... | [
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},
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"text": "In this article, we will learn to move one HTML div element inside another using jQuery. "
},
{
"code": null,
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"s": 27154,
"text": "... |
Display Images on Terminal using Python - GeeksforGeeks | 04 Jul, 2021
In this article, we will discuss how to display images on a terminal using Python. We will be using the climage module for the same. This module has the following features –
It helps to convert images to its ANSI Escape Codes to be able to convert be printable on Command-Line Interfaces.
It allows 8/16/25... | [
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},
{
"code": null,
"e": 25822,
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"text": "In this article, we will discuss how to display images on a terminal using Python. We will be using the climage module for the same. This module has the following ... |
GATE | GATE-CS-2015 (Set 3) | Question 41 - GeeksforGeeks | 07 Sep, 2021
Consider the following grammar G.
S → F ⎪ H
F → p ⎪ c
H → d ⎪ c
Where S, F and H are non-terminal symbols, p, d and c are terminal symbols. Which of the following statement(s) is/are correct?
S1: LL(1) can parse all strings that are generated using grammar G.
S2: LR(1) can parse all strings that are... | [
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"code": null,
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"text": "Consider the following grammar G."
},
{
"code": null,
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"text": " S → F ⎪ H\n F → p ⎪ c\n H → d ⎪ c "
},
{
"co... |
Checking MySQL Database Size in Linux - GeeksforGeeks | 11 Feb, 2021
Mysql is the most popular open-source database among developers. It is developed and managed by Oracle Corporation and initially released on 23 May 1995. It is compatible with each operating system, Like(Linux, Windows, and macOS) which is major support for web-based applications. In this article, we are g... | [
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},
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"code": null,
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"text": "Mysql is the most popular open-source database among developers. It is developed and managed by Oracle Corporation and initially released on 23 May 1995. It is com... |
C program to Count the digits of a number - GeeksforGeeks | 29 Apr, 2020
Given a number N, write a C program to find the count of digits in number N.
Examples:
Input: N = 12345Output: 5Explanation:The count of digit in 12345 = 5.
Input: N = 23451452Output: 8Explanation:The count of digits in 23451452 = 8.
Approach: Count of digits in a number can be found efficiently in few ste... | [
{
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"text": "\n29 Apr, 2020"
},
{
"code": null,
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"text": "Given a number N, write a C program to find the count of digits in number N."
},
{
"code": null,
"e": 25119,
"s": 25109,
"text": "Examples:"
... |
Draw a moving car using computer graphics programming in C - GeeksforGeeks | 07 Oct, 2021
In computer graphics, use graphics.h which provide direct functions to draw different coordinate shapes (like circle, rectangle etc). By using these functions we can draw different objects like car, hut, trees, etc. In this program, we will draw a moving car using line and circles.
Functions used in progra... | [
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},
{
"code": null,
"e": 24536,
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"text": "In computer graphics, use graphics.h which provide direct functions to draw different coordinate shapes (like circle, rectangle etc). By using these functions we c... |
Fizz Buzz in Python | Suppose we have a number n. We have to display a string representation of all numbers from 1 to n, but there are some constraints.
If the number is divisible by 3, write Fizz instead of the number
If the number is divisible by 5, write Buzz instead of the number
If the number is divisible by 3 and 5 both, write FizzBuz... | [
{
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"text": "Suppose we have a number n. We have to display a string representation of all numbers from 1 to n, but there are some constraints."
},
{
"code": null,
"e": 1259,
"s": 1193,
"text": "If the number is divisible by 3, write Fizz instead... |
CSS - Bounce Effect | Bounce Animation effect is used to move the element quick up, back, or away from a surface after hitting it.
@keyframes bounce {
0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
40% {transform: translateY(-30px);}
60% {transform: translateY(-15px);}
}
Transform − Transform applies to 2d and 3d transform... | [
{
"code": null,
"e": 2735,
"s": 2626,
"text": "Bounce Animation effect is used to move the element quick up, back, or away from a surface after hitting it."
},
{
"code": null,
"e": 2894,
"s": 2735,
"text": "@keyframes bounce {\n 0%, 20%, 50%, 80%, 100% {transform: translateY(0)... |
Extract Content from XML | How to extract content from an XML document using java.
Following is the program to extract content from an XML document using java.
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apac... | [
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"text": "How to extract content from an XML document using java."
},
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"code": null,
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"text": "Following is the program to extract content from an XML document using java."
},
{
"code": null,
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Java Program to Find a triplet that sum to a given value - GeeksforGeeks | 21 Dec, 2021
Given an array and a value, find if there is a triplet in array whose sum is equal to the given value. If there is such a triplet present in array, then print the triplet and return true. Else return false.
Examples:
Input: array = {12, 3, 4, 1, 6, 9}, sum = 24; Output: 12, 3, 9 Explanation: There is a t... | [
{
"code": null,
"e": 24796,
"s": 24768,
"text": "\n21 Dec, 2021"
},
{
"code": null,
"e": 25003,
"s": 24796,
"text": "Given an array and a value, find if there is a triplet in array whose sum is equal to the given value. If there is such a triplet present in array, then print the ... |
Write your own memcpy() and memmove() - GeeksforGeeks | 10 Dec, 2021
The memcpy function is used to copy a block of data from a source address to a destination address. Below is its prototype.
void * memcpy(void * destination, const void * source, size_t num);
The idea is to simply typecast given addresses to char *(char takes 1 byte). Then one by one copy data from source ... | [
{
"code": null,
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"text": "\n10 Dec, 2021"
},
{
"code": null,
"e": 24490,
"s": 24366,
"text": "The memcpy function is used to copy a block of data from a source address to a destination address. Below is its prototype."
},
{
"code": null,
"e": 24... |
Counting Inversions using Ordered Set and GNU C++ PBDS - GeeksforGeeks | 22 Mar, 2022
Given an array arr[] of N integers. The task is to find the number of inversion. Two elements arr[i] and arr[j] form an inversion if arr[i] > arr[j] and i < j.
Examples
Input: arr[] = {8, 4, 2, 1} Output: 6 Explanation: Given array has six inversions:
(8, 4): arr[0] > arr[1] and 0 < 1
(8, 2): arr[0] > ... | [
{
"code": null,
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"s": 24460,
"text": "\n22 Mar, 2022"
},
{
"code": null,
"e": 24649,
"s": 24488,
"text": "Given an array arr[] of N integers. The task is to find the number of inversion. Two elements arr[i] and arr[j] form an inversion if arr[i] > arr[j] and i < j. "
... |
How do I remove a substring from the end of a string in Python? | If you want to remove a substring from the end of a string, you should fisrt check if the string ends with that substring. If it does, then slice the string keeping only the part without substring. For example,
def rchop(string, ending):
if string.endswith(ending):
return string[:-len(ending)]
return string
cho... | [
{
"code": null,
"e": 1273,
"s": 1062,
"text": "If you want to remove a substring from the end of a string, you should fisrt check if the string ends with that substring. If it does, then slice the string keeping only the part without substring. For example,"
},
{
"code": null,
"e": 1440,... |
1 to n bit numbers with no consecutive 1s in binary representation - GeeksforGeeks | 30 Apr, 2021
Given a number n, our task is to find all 1 to n bit numbers with no consecutive 1s in their binary representation.Examples:
Input: N = 4
Output: 1 2 4 5 8 9 10
These are numbers with 1 to 4
bits and no consecutive ones in
binary representation.
Input: n = 3
Output: 1 2 4 5
Approach:
There will be 2n numb... | [
{
"code": null,
"e": 25014,
"s": 24986,
"text": "\n30 Apr, 2021"
},
{
"code": null,
"e": 25139,
"s": 25014,
"text": "Given a number n, our task is to find all 1 to n bit numbers with no consecutive 1s in their binary representation.Examples:"
},
{
"code": null,
"e": 2... |
HTMLCollection item() Method - GeeksforGeeks | 26 Jul, 2019
The item() method is used to return the content of element at the given index of the collection of all HTML element. The index starts from zero(0). The elements in the collection are sorted in the order as they appear in the sourcecode.
Syntax:
HTMLCollection.item(index)
OR
HTMLCollection[index]
Paramete... | [
{
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"text": "\n26 Jul, 2019"
},
{
"code": null,
"e": 24551,
"s": 24314,
"text": "The item() method is used to return the content of element at the given index of the collection of all HTML element. The index starts from zero(0). The elements in... |
JasmineJS - Quick Guide | Jasmine is an open-source JavaScript framework, capable of testing any kind of JavaScript application. Jasmine follows Behavior Driven Development (BDD) procedure to ensure that each line of JavaScript statement is properly unit tested. By following BDD procedure, Jasmine provides a small syntax to test the smallest un... | [
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"code": null,
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"s": 2050,
"text": "Jasmine is an open-source JavaScript framework, capable of testing any kind of JavaScript application. Jasmine follows Behavior Driven Development (BDD) procedure to ensure that each line of JavaScript statement is properly unit tested. By following BDD... |
Analyzing Employee Exit Surveys. Analyze statistical rigor and latent... | by Kamil Mysiak | Towards Data Science | When analyzing employee sentiment data, which in our case is an employee exit survey, we have to look at four topics.
Statistical rigor of the surveyDemographical composition of survey respondentsOverall sentiment for defined latent constructsSentiment scores by respondents’ characteristics (ie. gender, location, depar... | [
{
"code": null,
"e": 290,
"s": 172,
"text": "When analyzing employee sentiment data, which in our case is an employee exit survey, we have to look at four topics."
},
{
"code": null,
"e": 505,
"s": 290,
"text": "Statistical rigor of the surveyDemographical composition of survey r... |
How to get the id of a form containing a dropdown list with JavaScript? | To get the id of a form with a drop-down list, use the id property in JavaScript.
You can try to run the following code to find the id of a form containing drop-down list −
Live Demo
<!DOCTYPE html>
<html>
<body>
<form id="myForm1">
<button id="btn" type="button" value="my_button">Demo</button>
... | [
{
"code": null,
"e": 1144,
"s": 1062,
"text": "To get the id of a form with a drop-down list, use the id property in JavaScript."
},
{
"code": null,
"e": 1235,
"s": 1144,
"text": "You can try to run the following code to find the id of a form containing drop-down list −"
},
{... |
How to create a self-signed certificate using PowerShell? | To create a self-signed certificate there are various methods like OpenSSL, IIS, PowerShell, etc. Here, we will see how we can create a self-signed certificate with PowerShell.
To create a self-signed certificate with PowerShell, we need to use the New-SelfSignedCertificate command. When you create a self-signed certif... | [
{
"code": null,
"e": 1239,
"s": 1062,
"text": "To create a self-signed certificate there are various methods like OpenSSL, IIS, PowerShell, etc. Here, we will see how we can create a self-signed certificate with PowerShell."
},
{
"code": null,
"e": 1636,
"s": 1239,
"text": "To cr... |
Why non-static variable cannot be referenced from a static method in Java - GeeksforGeeks | 14 Oct, 2020
Java is one of the most popular and widely used programming language and platform. Java is Object Oriented. However, it is not considered as a pure object-oriented as it provides support for primitive data types (like int, char, etc). In java, methods can be declared as either static or non-static. In this... | [
{
"code": null,
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"text": "\n14 Oct, 2020"
},
{
"code": null,
"e": 24831,
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"text": "Java is one of the most popular and widely used programming language and platform. Java is Object Oriented. However, it is not considered as a pure object-oriented... |
Python | Inverse Fast Walsh Hadamard Transformation - GeeksforGeeks | 31 Jan, 2022
It is an Hadamard ordered efficient algorithm to compute the inverse Walsh Hadamard transform (WHT). Normal WHT computation has N = 2m complexity but using IFWHT reduces the computation to O(n2). The FWHT requires O(n logn) additions and subtraction operations. It is a divide and conquer algorithm which br... | [
{
"code": null,
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"text": "\n31 Jan, 2022"
},
{
"code": null,
"e": 24444,
"s": 24105,
"text": "It is an Hadamard ordered efficient algorithm to compute the inverse Walsh Hadamard transform (WHT). Normal WHT computation has N = 2m complexity but using IFWHT r... |
Reset MySQL field to default value? | In MySQL, there are two approaches by which you can reset the MySQL field to default value. One is default keyword and another is default() function.
Case 1: Using default keyword. The syntax is as follows:
UPDATE yourTableName SET yourColumnName=default where yourCondition;
Case 2: Using default() function. The syntax... | [
{
"code": null,
"e": 1212,
"s": 1062,
"text": "In MySQL, there are two approaches by which you can reset the MySQL field to default value. One is default keyword and another is default() function."
},
{
"code": null,
"e": 1269,
"s": 1212,
"text": "Case 1: Using default keyword. T... |
Check for Amicable Pair - GeeksforGeeks | 24 Mar, 2021
Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. (A proper divisor of a number is a positive factor of that number other than the number itself. Examples:
Input : x = 220, y = 284
Output : Yes
Proper divisors of 220 are 1, 2,... | [
{
"code": null,
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"s": 25933,
"text": "\n24 Mar, 2021"
},
{
"code": null,
"e": 26197,
"s": 25961,
"text": "Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. (A proper divisor of a number is a ... |
Data Version control & machine learning process control using DVC & GitHub | by Nisarg Dave | Towards Data Science | Even with all the success we’ve seen today in machine learning (ML), specifically deep learning and its applications in business, the data science community still lacks good practices for organizing their projects and effectively collaborating across their varied ML projects.
Improving the productivity of machine learn... | [
{
"code": null,
"e": 448,
"s": 171,
"text": "Even with all the success we’ve seen today in machine learning (ML), specifically deep learning and its applications in business, the data science community still lacks good practices for organizing their projects and effectively collaborating across thei... |
Are true and false keywords in java? | Keywords − Keywords in Java convey a special meaning to the compiler therefore, these cannot be used as identifiers. Java provides a set of 50 keywords.
Reserved words − Among the list of key words list mentioned above the key words goto and const are currently not in use. They are reserved words (for the future use).
... | [
{
"code": null,
"e": 1215,
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"text": "Keywords − Keywords in Java convey a special meaning to the compiler therefore, these cannot be used as identifiers. Java provides a set of 50 keywords."
},
{
"code": null,
"e": 1382,
"s": 1215,
"text": "Reserved words − Among the li... |
Differences between a Matrix and a Tensor - GeeksforGeeks | 14 Jun, 2021
In this article, we will learn about Matrix and Tensor.
Matrix : It is a tabular format in which numbers can be represented, like below –
Here, a11 means 1st row and 1st column. Rows are horizontal lines and columns are vertical lines. Here, the matrix is 4 x 4. These are shown as n x m, where n is the n... | [
{
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"text": "\n14 Jun, 2021"
},
{
"code": null,
"e": 24859,
"s": 24802,
"text": "In this article, we will learn about Matrix and Tensor. "
},
{
"code": null,
"e": 24942,
"s": 24859,
"text": "Matrix : It is a tabular format i... |
Spark in Docker in Kubernetes: A Practical Approach for Scalable NLP | by Jürgen Schmidl | Towards Data Science | This article is part of a larger project. If you are also interested in scalable web scraping or building highly scalable dashboards, you will find corresponding links at the end of the article.
Prerequisites to the readerIntroduction2.1 Purpose of this Project2.2 Introduction to scalable NLPArchitectureSetupHow to use... | [
{
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"text": "This article is part of a larger project. If you are also interested in scalable web scraping or building highly scalable dashboards, you will find corresponding links at the end of the article."
},
{
"code": null,
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... |
How to insert Date in MongoDB? | To insert date in MongoDB, use Date(). Let us create a collection with documents −
> db.demo421.insert({"DueDate":new Date(Date.now())});
WriteResult({ "nInserted" : 1 })
> db.demo421.insert({"DueDate":new Date("2020-01-15")});
WriteResult({ "nInserted" : 1 })
> db.demo421.insert({"DueDate":new Date("2018-12-31")});
Wr... | [
{
"code": null,
"e": 1145,
"s": 1062,
"text": "To insert date in MongoDB, use Date(). Let us create a collection with documents −"
},
{
"code": null,
"e": 1413,
"s": 1145,
"text": "> db.demo421.insert({\"DueDate\":new Date(Date.now())});\nWriteResult({ \"nInserted\" : 1 })\n> db.... |
Axure RP - Quick Guide | Close
Edit
Cut
Copy
Paste
Find
Replace
View
Show Status Bar
Toolbars
Main Toolbar
Styling Toolbar
Main Toolbar
Styling Toolbar
Help
Getting Started
Using Help
What’s this
To get started, drag and drop Classic Menu – Horizontal in the design area. You will find it under Libraries → Menus and Tables. Name the control ... | [
{
"code": null,
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"text": "Close"
},
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"text": "Cut"
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"code": null,
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"text": "Copy"
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{
... |
Change your way to put logic in your code - Python - GeeksforGeeks | 28 May, 2020
Aren’t you bored coding in the same traditional logic over these years. It’s time to bring some differences. Well, be it any programming language. When we are asked to do some sort of basic programming exercises like sorting, searching, prime number checking, etc. we are all driven towards the same boat, w... | [
{
"code": null,
"e": 24292,
"s": 24264,
"text": "\n28 May, 2020"
},
{
"code": null,
"e": 24819,
"s": 24292,
"text": "Aren’t you bored coding in the same traditional logic over these years. It’s time to bring some differences. Well, be it any programming language. When we are aske... |
IntStream mapToDouble() method in Java | The mapToDouble() method returns a DoubleStream consisting of the results of applying the given function to the elements of this stream.
The syntax is as follows.
DoubleStream mapToDouble(IntToDoubleFunction mapper)
Here, the parameter mapper is the stateless function applied to each element.
Create an IntStream with s... | [
{
"code": null,
"e": 1199,
"s": 1062,
"text": "The mapToDouble() method returns a DoubleStream consisting of the results of applying the given function to the elements of this stream."
},
{
"code": null,
"e": 1225,
"s": 1199,
"text": "The syntax is as follows."
},
{
"code... |
Create a password generator using shell scripting - GeeksforGeeks | 19 Jul, 2019
Creating a strong password is often a time-consuming task and even after creating a good password by yourself it gets brute-forced by hackers. In this article, we will learn how to create a strong password which fulfills all requirements including symbols, capitals length etc using a simple shell script in... | [
{
"code": null,
"e": 24406,
"s": 24378,
"text": "\n19 Jul, 2019"
},
{
"code": null,
"e": 24721,
"s": 24406,
"text": "Creating a strong password is often a time-consuming task and even after creating a good password by yourself it gets brute-forced by hackers. In this article, we ... |
JavaScript - The Boolean Object | The Boolean object represents two values, either "true" or "false". If value parameter is omitted or is 0, -0, null, false, NaN, undefined, or the empty string (""), the object has an initial value of false.
Use the following syntax to create a boolean object.
var val = new Boolean(value);
Here is a list of the proper... | [
{
"code": null,
"e": 2674,
"s": 2466,
"text": "The Boolean object represents two values, either \"true\" or \"false\". If value parameter is omitted or is 0, -0, null, false, NaN, undefined, or the empty string (\"\"), the object has an initial value of false."
},
{
"code": null,
"e": 27... |
C++ Program to calculate the value of sin(x) and cos(x) | Given with the input as angles and the task is to calculate the value of sin(x) and cos(x) corresponding to the given angle and display the result
Sin(x) is a trigonometric function which is used to calculate the value of x angle.
sin(x)=∑k=0∞(−1)k(2k+1)!x2k+1
Cos(x) is a trigonometric function which is used to calcul... | [
{
"code": null,
"e": 1209,
"s": 1062,
"text": "Given with the input as angles and the task is to calculate the value of sin(x) and cos(x) corresponding to the given angle and display the result"
},
{
"code": null,
"e": 1293,
"s": 1209,
"text": "Sin(x) is a trigonometric function ... |
How to get the value of System Property and Environment Variable in Java? - GeeksforGeeks | 08 Nov, 2019
The System class in Java provides a method named System.getenv() which can be used to get the value of an environment variable set in the current system.
Syntax:
public static String getenv(String key);
where key is the Environment variable
whose values we want
Below example illustrates how to use System... | [
{
"code": null,
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"text": "\n08 Nov, 2019"
},
{
"code": null,
"e": 25186,
"s": 25032,
"text": "The System class in Java provides a method named System.getenv() which can be used to get the value of an environment variable set in the current system."
},
{... |
Changing three.js background to transparent or another color in HTML | If you want a transparent background in three.js, you need a pass in the alpha parameter to the WebGLRenderer constructors in the below-given code −
var renderer = new THREE.WebGLRenderer( {alpha: true } );
// You can leave the clear color at the defaultvalue.
renderer.setClearColor( 0x000000, 0 ); //default
However, t... | [
{
"code": null,
"e": 1211,
"s": 1062,
"text": "If you want a transparent background in three.js, you need a pass in the alpha parameter to the WebGLRenderer constructors in the below-given code −"
},
{
"code": null,
"e": 1372,
"s": 1211,
"text": "var renderer = new THREE.WebGLRen... |
Subarray/Substring vs Subsequence and Programs to Generate them - GeeksforGeeks | 09 May, 2022
Subarray/Substring
A subarray is a contiguous part of array. An array that is inside another array. For example, consider the array [1, 2, 3, 4], There are 10 non-empty sub-arrays. The subarrays are (1), (2), (3), (4), (1,2), (2,3), (3,4), (1,2,3), (2,3,4) and (1,2,3,4). In general, for an array/string of ... | [
{
"code": null,
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"s": 42603,
"text": "\n09 May, 2022"
},
{
"code": null,
"e": 42650,
"s": 42631,
"text": "Subarray/Substring"
},
{
"code": null,
"e": 42999,
"s": 42650,
"text": "A subarray is a contiguous part of array. An array that is inside anoth... |
XLOOKUP Function in Excel With Examples - GeeksforGeeks | 01 Jun, 2021
XLOOKUP Function helps us to search value in a horizontal or vertical dataset and return the relative value in some other row or column. In this article, we will look XLOOKUP Function in Excel.
Syntax:
=XLOOKUP(lookup_value, lookup_array, return_array, [if_not_found], [match_mode],[search_mode])
Parameter:... | [
{
"code": null,
"e": 26425,
"s": 26397,
"text": "\n01 Jun, 2021"
},
{
"code": null,
"e": 26619,
"s": 26425,
"text": "XLOOKUP Function helps us to search value in a horizontal or vertical dataset and return the relative value in some other row or column. In this article, we will l... |
Is `definer` required when creating a MySQL stored procedure? | No, definer part is not compulsory when you are creating a stored procedure. It is used when you want to create a definer.
Check all the user and host from the MySQL.user table −
mysql> select user,host from mysql.user;
The following is the output −
+------------------+-----------+
| user | host |
+---... | [
{
"code": null,
"e": 1185,
"s": 1062,
"text": "No, definer part is not compulsory when you are creating a stored procedure. It is used when you want to create a definer."
},
{
"code": null,
"e": 1241,
"s": 1185,
"text": "Check all the user and host from the MySQL.user table −"
... |
jQuery - Filer.js | Filer.js is a jQuery plugin for quickly and easily implementing of uploading files.
A Simple of filer.js example as shown below −
<html xmlns = "https://www.w3.org/1999/xhtml">
<head>
<meta http-equiv = "Content-Type" content = "text/html; charset = utf-8" />
<link href = "css/jquery.filer.css" type = "... | [
{
"code": null,
"e": 2406,
"s": 2322,
"text": "Filer.js is a jQuery plugin for quickly and easily implementing of uploading files."
},
{
"code": null,
"e": 2453,
"s": 2406,
"text": "A Simple of filer.js example as shown below −"
},
{
"code": null,
"e": 16434,
"s"... |
JDB - Quick Guide | Debugging is a technical procedure to find and remove bugs or defects in a program and get expected results. Debugging includes testing and monitoring. It is very complex when the subunits of a program are tightly coupled. We can debug a program using the debugger tools that follow the prescribed APIs. A debugger allow... | [
{
"code": null,
"e": 2142,
"s": 1723,
"text": "Debugging is a technical procedure to find and remove bugs or defects in a program and get expected results. Debugging includes testing and monitoring. It is very complex when the subunits of a program are tightly coupled. We can debug a program using t... |
5 Steps: Setup VS Code for Remote Development via SSH from Windows to Linux system | by Gong Na | Towards Data Science | Remote development is a very popular function in VS Code. Their official documentations provide standard instructions to configure it in a general way. But when I connect to the remote Linux server from Windows system, I always got the below Corrupted MAC on input error and hard to find a complete solution in one place... | [
{
"code": null,
"e": 494,
"s": 172,
"text": "Remote development is a very popular function in VS Code. Their official documentations provide standard instructions to configure it in a general way. But when I connect to the remote Linux server from Windows system, I always got the below Corrupted MAC... |
Visualising economic data using Plotly | by Daniel Foley | Towards Data Science | Since I am an Economist by training and love programming and data science I wanted to combine these passions and do some fun data analysis. This post makes use of a variety of python libraries to scrape and visualise economic data. I hope this is useful to some of you and that you enjoy readingthis as much as I did doi... | [
{
"code": null,
"e": 499,
"s": 172,
"text": "Since I am an Economist by training and love programming and data science I wanted to combine these passions and do some fun data analysis. This post makes use of a variety of python libraries to scrape and visualise economic data. I hope this is useful t... |
C program for Time Complexity plot of Bubble, Insertion and Selection Sort using Gnuplot - GeeksforGeeks | 24 Nov, 2021
Prerequisite:Comparison among bubble sort, insertion sort and selection sort.
Write a C program to plot and analyze the time complexity of Bubble sort, Insertion sort and Selection sort (using Gnuplot).As per the problem we have to plot a time complexity graph by just using C. So we will be making sorting ... | [
{
"code": null,
"e": 25044,
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"text": "\n24 Nov, 2021"
},
{
"code": null,
"e": 25122,
"s": 25044,
"text": "Prerequisite:Comparison among bubble sort, insertion sort and selection sort."
},
{
"code": null,
"e": 25468,
"s": 25122,
"text": "Write a C pr... |
How to delete the windows certificate using PowerShell? | To delete the Windows certificate using PowerShell, we can use the Remove-Item command.
Suppose you know the thumbprint of the certificate then to retrieve all the certificates that use that particular thumbprint, we will use the below command.
PS C:\> gci cert:\ -Recurse | where{$_.Thumbprint -eq
To remove the certifi... | [
{
"code": null,
"e": 1150,
"s": 1062,
"text": "To delete the Windows certificate using PowerShell, we can use the Remove-Item command."
},
{
"code": null,
"e": 1307,
"s": 1150,
"text": "Suppose you know the thumbprint of the certificate then to retrieve all the certificates that ... |
Zend Framework - Module System | The Zend Framework provides a powerful module system. The module system has three components. They are as follows −
Module Autoloader − A Module Autoloader is responsible for locating and loading of modules from variety of sources. It can load modules packaged as Phar archives as well. The implementation of the Module ... | [
{
"code": null,
"e": 2428,
"s": 2312,
"text": "The Zend Framework provides a powerful module system. The module system has three components. They are as follows −"
},
{
"code": null,
"e": 2722,
"s": 2428,
"text": "Module Autoloader − A Module Autoloader is responsible for locatin... |
How to use open source satellite data for your investigative reporting | by Techjournalist | Towards Data Science | Undoubtedly a vast goldmine of information — perhaps too vast — many journalists still shy away from working with satellite data extensively. Since the emergence of high-resolution data provided from firms like DigitalGlobe and Planet Labs, the supply of satellite stories has mushroomed. But open source data — a valid ... | [
{
"code": null,
"e": 934,
"s": 171,
"text": "Undoubtedly a vast goldmine of information — perhaps too vast — many journalists still shy away from working with satellite data extensively. Since the emergence of high-resolution data provided from firms like DigitalGlobe and Planet Labs, the supply of ... |
Difference between continue and pass statements in Python - GeeksforGeeks | 25 Jun, 2020
Using loops in Python automates and repeats the tasks in an efficient manner. But sometimes, there may arise a condition where you want to exit the loop completely, skip an iteration or ignore that condition. These can be done by loop control statements. Loop control statements change execution from its no... | [
{
"code": null,
"e": 24294,
"s": 24266,
"text": "\n25 Jun, 2020"
},
{
"code": null,
"e": 24766,
"s": 24294,
"text": "Using loops in Python automates and repeats the tasks in an efficient manner. But sometimes, there may arise a condition where you want to exit the loop completely... |
Count the number of element present in the sequence in LINQ? - GeeksforGeeks | 21 May, 2019
In LINQ, you can count the total number of elements present in the given sequence by using the Count Method. This method returns the total number of elements present in the given sequence.
This method can be overloaded in two different ways:
Count<TSource>(): This method returns the total number of element... | [
{
"code": null,
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"text": "\n21 May, 2019"
},
{
"code": null,
"e": 24100,
"s": 23911,
"text": "In LINQ, you can count the total number of elements present in the given sequence by using the Count Method. This method returns the total number of elements prese... |
JSP - The taglib Directive | The JavaServer Pages API allow you to define custom JSP tags that look like HTML or XML tags and a tag library is a set of user-defined tags that implement custom behavior.
The taglib directive declares that your JSP page uses a set of custom tags, identifies the location of the library, and provides means for identify... | [
{
"code": null,
"e": 2412,
"s": 2239,
"text": "The JavaServer Pages API allow you to define custom JSP tags that look like HTML or XML tags and a tag library is a set of user-defined tags that implement custom behavior."
},
{
"code": null,
"e": 2597,
"s": 2412,
"text": "The tagli... |
Find length of Loop | Practice | GeeksforGeeks | Given a linked list of size N. The task is to complete the function countNodesinLoop() that checks whether a given Linked List contains a loop or not and if the loop is present then return the count of nodes in a loop or else return 0. C is the position of the node to which the last node is connected. If it is 0 then n... | [
{
"code": null,
"e": 566,
"s": 238,
"text": "Given a linked list of size N. The task is to complete the function countNodesinLoop() that checks whether a given Linked List contains a loop or not and if the loop is present then return the count of nodes in a loop or else return 0. C is the position o... |
How to communicate JSON data between Python and Node.js ? - GeeksforGeeks | 11 Feb, 2022
The following article covers how to communicate JSON data between Python and Node.js. Suppose we are working with the Node.js application, and we want to make use of a specific library that is only available in python or vice versa. We should be able to share the results from one language to another and to... | [
{
"code": null,
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"text": "\n11 Feb, 2022"
},
{
"code": null,
"e": 25000,
"s": 24628,
"text": "The following article covers how to communicate JSON data between Python and Node.js. Suppose we are working with the Node.js application, and we want to make use ... |
DOM - NamedNodeMap Object Method - item () | The method item () returns the indexth item in the map. If index is greater than or equal to the number of nodes in this map, this returns null.
Following is the syntax for the usage of the item() method.
nodemapObject.item(index)
index
It specifies the position of the item into the map. It is of type unsigned long.
T... | [
{
"code": null,
"e": 2433,
"s": 2288,
"text": "The method item () returns the indexth item in the map. If index is greater than or equal to the number of nodes in this map, this returns null."
},
{
"code": null,
"e": 2493,
"s": 2433,
"text": "Following is the syntax for the usage... |
Convert a Binary Tree to Threaded binary tree | Set 1 (Using Queue) in C++ | In this tutorial, we will be discussing a program to convert a binary tree to a threaded binary tree using a queue data structure.
For this, we will be provided with a binary tree. Our task is to convert that particular binary tree into a threaded binary tree by adding additional routes for quicker inorder traversal wi... | [
{
"code": null,
"e": 1193,
"s": 1062,
"text": "In this tutorial, we will be discussing a program to convert a binary tree to a threaded binary tree using a queue data structure."
},
{
"code": null,
"e": 1421,
"s": 1193,
"text": "For this, we will be provided with a binary tree. O... |
Program for Identity Matrix in C | Given a square matrix M[r][c] where ‘r’ is some number of rows and ‘c’ are columns such that r = c, we have to check that ‘M’ is identity matrix or not.
Identity matrix is also known as Unit matrix of size nxn square matrix where diagonal elements will only have integer value one and non diagonal elements will only hav... | [
{
"code": null,
"e": 1215,
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"text": "Given a square matrix M[r][c] where ‘r’ is some number of rows and ‘c’ are columns such that r = c, we have to check that ‘M’ is identity matrix or not."
},
{
"code": null,
"e": 1403,
"s": 1215,
"text": "Identity matrix is also known... |
Array getInt() Method in Java - GeeksforGeeks | 23 Jul, 2020
The java.lang.reflect.Array.getInt() is an inbuilt method in Java and is used to return an element at the given index from the specified Array as a int.
Syntax
Array.getInt(Object []array, int index)
Parameters: This method accepts two mandatory parameters:
array: The object array whose index is to be ret... | [
{
"code": null,
"e": 24930,
"s": 24902,
"text": "\n23 Jul, 2020"
},
{
"code": null,
"e": 25083,
"s": 24930,
"text": "The java.lang.reflect.Array.getInt() is an inbuilt method in Java and is used to return an element at the given index from the specified Array as a int."
},
{
... |
How to use Line chart graph in android? | This example demonstrate about How to use Line chart graph in android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Open build.gradle(module level) and add library dependency.
apply plugin: 'com.android.application'
android {
... | [
{
"code": null,
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"text": "This example demonstrate about How to use Line chart graph in android."
},
{
"code": null,
"e": 1262,
"s": 1133,
"text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to crea... |
Step-by-Step Guide to Creating R and Python Libraries (in JupyterLab) | by Sean McClure | Towards Data Science | R and Python are the bread and butter of today’s machine learning languages. R provides powerful statistics and quick visualizations, while Python offers an intuitive syntax, abundant support, and is the choice interface to today’s major AI frameworks.
In this article we’ll look at the steps involved in creating librar... | [
{
"code": null,
"e": 425,
"s": 172,
"text": "R and Python are the bread and butter of today’s machine learning languages. R provides powerful statistics and quick visualizations, while Python offers an intuitive syntax, abundant support, and is the choice interface to today’s major AI frameworks."
... |
Scala - break Statement | As such there is no built-in break statement available in Scala but if you are running Scala version 2.8, then there is a way to use break statement. When the break statement is encountered inside a loop, the loop is immediately terminated and program control resumes at the next statement following the loop.
The follow... | [
{
"code": null,
"e": 2308,
"s": 1998,
"text": "As such there is no built-in break statement available in Scala but if you are running Scala version 2.8, then there is a way to use break statement. When the break statement is encountered inside a loop, the loop is immediately terminated and program c... |
C# | Getting the index of the specified key in a SortedList object - GeeksforGeeks | 01 Feb, 2019
SortedList.IndexOfKey(Object) Method is used to get the zero-based index of the specified key in a SortedList object.
Syntax:
public virtual int IndexOfKey (object key);
Here, key is the Key which is to be located in the SortedList object.
Return Value: This method returns the zero-based index of type Syst... | [
{
"code": null,
"e": 24302,
"s": 24274,
"text": "\n01 Feb, 2019"
},
{
"code": null,
"e": 24420,
"s": 24302,
"text": "SortedList.IndexOfKey(Object) Method is used to get the zero-based index of the specified key in a SortedList object."
},
{
"code": null,
"e": 24428,
... |
Locating child nodes of WebElements in selenium. | We can locate child nodes of web elements with Selenium webdriver. First of all we need to identify the parent element with help of any of the locators like id, class, name, xpath or css. Then we have to identify the children with the findElements(By.xpath()) method.
We can identify the child nodes from the parent, by ... | [
{
"code": null,
"e": 1330,
"s": 1062,
"text": "We can locate child nodes of web elements with Selenium webdriver. First of all we need to identify the parent element with help of any of the locators like id, class, name, xpath or css. Then we have to identify the children with the findElements(By.xp... |
Here is the reason why SQLAlchemy is so popular | by Ange Uwase | Towards Data Science | There are two ways you can connect a python application to a relational database: a low-level approach and a high-level one. The low-level approach involves installing and setting up the relational database management system on your local machine, and writing actual SQL commands to carry out database operations. The al... | [
{
"code": null,
"e": 880,
"s": 171,
"text": "There are two ways you can connect a python application to a relational database: a low-level approach and a high-level one. The low-level approach involves installing and setting up the relational database management system on your local machine, and wri... |
Defanging an IP Address in Python | Suppose we have a valid IPv4 IP address. We have to return the Defanged version of the IP address. A Defanged IP address is basically replace every period “.” by “[.]” So if the IP address is “192.168.4.1”, the output will be “192[.]168[.]4[.]1”
To solve this, we will follow these steps −
We will split the string using... | [
{
"code": null,
"e": 1308,
"s": 1062,
"text": "Suppose we have a valid IPv4 IP address. We have to return the Defanged version of the IP address. A Defanged IP address is basically replace every period “.” by “[.]” So if the IP address is “192.168.4.1”, the output will be “192[.]168[.]4[.]1”"
},
... |
Subsetting in R Programming - GeeksforGeeks | 08 Nov, 2021
In R Programming Language, subsetting allows the user to access elements from an object. It takes out a portion from the object based on the condition provided. There are 4 ways of subsetting in R programming. Each of the methods depends on the usability of the user and the type of object. For example, if ... | [
{
"code": null,
"e": 25242,
"s": 25214,
"text": "\n08 Nov, 2021"
},
{
"code": null,
"e": 25830,
"s": 25242,
"text": "In R Programming Language, subsetting allows the user to access elements from an object. It takes out a portion from the object based on the condition provided. Th... |
Perl stat Function | This function returns a 13-element array giving the status info for a file, specified by either FILEHANDLE, EXPR, or $_. The list of values returned is shown below in Table. If used in a scalar context, returns 0 on failure, 1 on success.
Note that support for some of these elements is system dependent. Check the docum... | [
{
"code": null,
"e": 2459,
"s": 2220,
"text": "This function returns a 13-element array giving the status info for a file, specified by either FILEHANDLE, EXPR, or $_. The list of values returned is shown below in Table. If used in a scalar context, returns 0 on failure, 1 on success."
},
{
... |
How to Build a Bitcoin Tracker Android App? - GeeksforGeeks | 09 Feb, 2021
In this article, we will be building a Bitcoin Tracker App Project using Java and XML in Android. The application will display the current rates of Bitcoin in different countries using Bitcoin API. There are many free APIs available and for this project, we will be using API by Coinlayer. The API will retu... | [
{
"code": null,
"e": 25142,
"s": 25114,
"text": "\n09 Feb, 2021"
},
{
"code": null,
"e": 25638,
"s": 25142,
"text": "In this article, we will be building a Bitcoin Tracker App Project using Java and XML in Android. The application will display the current rates of Bitcoin in diff... |
Encapsulation in Java - GeeksforGeeks | 24 Mar, 2022
Encapsulation is defined as the wrapping up of data under a single unit. It is the mechanism that binds together code and the data it manipulates. Another way to think about encapsulation is, it is a protective shield that prevents the data from being accessed by the code outside this shield.
Technically... | [
{
"code": null,
"e": 28950,
"s": 28922,
"text": "\n24 Mar, 2022"
},
{
"code": null,
"e": 29246,
"s": 28950,
"text": "Encapsulation is defined as the wrapping up of data under a single unit. It is the mechanism that binds together code and the data it manipulates. Another way to t... |
Tk - Geometry Manager | The geometry manager is used to manage the geometry of the window and other frames. We can use it to handle the position and size of the window and frames. The layout widgets are used for this purpose.
The syntax for positioning and sizing window is shown below −
wm geometry . wxh+/-x+/-y
Here, w refers to width and h... | [
{
"code": null,
"e": 2403,
"s": 2201,
"text": "The geometry manager is used to manage the geometry of the window and other frames. We can use it to handle the position and size of the window and frames. The layout widgets are used for this purpose."
},
{
"code": null,
"e": 2465,
"s":... |
Find sum of fields inside array in MongoDB? | To find sum of fields inside array, use $sum. Let us create a collection with documents −
> db.demo96.insertOne(
... {
...
... "Name" : "Chris",
... "Details" : [
... {
... Marks:67
... },
... {
... Marks:33
... },
... {
... Marks:50
... }
... ]
..... | [
{
"code": null,
"e": 1152,
"s": 1062,
"text": "To find sum of fields inside array, use $sum. Let us create a collection with documents −"
},
{
"code": null,
"e": 1478,
"s": 1152,
"text": "> db.demo96.insertOne(\n... {\n...\n... \"Name\" : \"Chris\",\n... \"Details\" : [\n..... |
Groovy - concat() | Concatenates the specified String to the end of this String.
String concat(String str)
str - the String that is concatenated to the end of this String.
This methods returns a string that represents the concatenation of this object's characters followed by the string argument's characters.
Following is an example of th... | [
{
"code": null,
"e": 2433,
"s": 2372,
"text": "Concatenates the specified String to the end of this String."
},
{
"code": null,
"e": 2460,
"s": 2433,
"text": "String concat(String str)\n"
},
{
"code": null,
"e": 2525,
"s": 2460,
"text": "str - the String that ... |
Priority Queue using doubly linked list in C++ | We are given with the data and the priority as an integer value and the task is to create a doubly linked list as per the priority given and display the result.
Queue is a FIFO data structure in which the element which is inserted first is the first one to get removed. A Priority Queue is a type of queue in which eleme... | [
{
"code": null,
"e": 1348,
"s": 1187,
"text": "We are given with the data and the priority as an integer value and the task is to create a doubly linked list as per the priority given and display the result."
},
{
"code": null,
"e": 1696,
"s": 1348,
"text": "Queue is a FIFO data ... |
Python | os.fsdecode() method | 25 Jun, 2019
OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality.
os.fsdecode() method in Python is used to decode the specified filename from the filesys... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n25 Jun, 2019"
},
{
"code": null,
"e": 247,
"s": 28,
"text": "OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of usin... |
PostgreSQL – Describe Table | 08 Feb, 2021
In PostgreSQL, there is no DESCRIBE statement as in MySQL. But users can query the information on columns of a table in a couple of ways. In this article we will look into them.
The information on various columns of a table can be achieved any of the below commands:
Syntax: \d or \d+
Example:
In this exam... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n08 Feb, 2021"
},
{
"code": null,
"e": 206,
"s": 28,
"text": "In PostgreSQL, there is no DESCRIBE statement as in MySQL. But users can query the information on columns of a table in a couple of ways. In this article we will look into the... |
CREATE and DROP INDEX Statement in SQL | 31 Aug, 2020
1. CREATE INDEX Statement :The CREATE INDEX statement will create indexes in tables. Indexes are used for data procurement from the databases faster. The users cannot see the indexes, they are running in the background of queries, used to speed up searches/queries.
Syntax :Create an index on a table :
CREA... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n31 Aug, 2020"
},
{
"code": null,
"e": 294,
"s": 28,
"text": "1. CREATE INDEX Statement :The CREATE INDEX statement will create indexes in tables. Indexes are used for data procurement from the databases faster. The users cannot see the ... |
Hyperlink Induced Topic Search (HITS) Algorithm using Networxx Module | Python | 22 Feb, 2021
Hyperlink Induced Topic Search (HITS) Algorithm is a Link Analysis Algorithm that rates webpages, developed by Jon Kleinberg. This algorithm is used to the web link-structures to discover and rank the webpages relevant for a particular search. HITS uses hubs and authorities to define a recursive relationsh... | [
{
"code": null,
"e": 28,
"s": 0,
"text": "\n22 Feb, 2021"
},
{
"code": null,
"e": 448,
"s": 28,
"text": "Hyperlink Induced Topic Search (HITS) Algorithm is a Link Analysis Algorithm that rates webpages, developed by Jon Kleinberg. This algorithm is used to the web link-structures... |
Java program to check whether a string is a Palindrome | 22 Jun, 2022
A string is said to be a palindrome if it is the same if we start reading it from left to right or right to left. So let us consider a string “str”, now the task is just to find out with its reverse string is the same as it is.
Example:
Input : str = "abba"
Output: Yes
Input : str = "geeks"
Output: No ... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n22 Jun, 2022"
},
{
"code": null,
"e": 281,
"s": 52,
"text": "A string is said to be a palindrome if it is the same if we start reading it from left to right or right to left. So let us consider a string “str”, now the task is just to f... |
C++ Program to count Vowels in a string using Pointer | 27 Sep, 2019
Pre-requisite: Pointers in C++
Given a string of lowercase english alphabets. The task is to count number of vowels present in a string using pointers
Examples:
Input : str = "geeks"
Output : 2
Input : str = "geeksforgeeks"
Output : 5
Approach:
Initialize the string using a character array.Create a char... | [
{
"code": null,
"e": 52,
"s": 24,
"text": "\n27 Sep, 2019"
},
{
"code": null,
"e": 83,
"s": 52,
"text": "Pre-requisite: Pointers in C++"
},
{
"code": null,
"e": 203,
"s": 83,
"text": "Given a string of lowercase english alphabets. The task is to count number o... |
What is the use of constructor in Java? | A constructor is similar to method and it is invoked at the time creating an object of the class, it is generally used to initialize the instance variables of a class. The constructors have same name as their class and, have no return type.
There are two types of constructors parameterized constructors and no-arg const... | [
{
"code": null,
"e": 1428,
"s": 1187,
"text": "A constructor is similar to method and it is invoked at the time creating an object of the class, it is generally used to initialize the instance variables of a class. The constructors have same name as their class and, have no return type."
},
{
... |
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