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MongoDB – Inequality Operator $ne	27 Mar, 2020 MongoDB provides different types of comparison operators and inequality or not equals operator( $ne ) is one of them. This operator is used to select those documents where the value of the field does not equal to the given value. It also includes those documents that do not contain the specified field. You...	[ { "code": null, "e": 28, "s": 0, "text": "\n27 Mar, 2020" }, { "code": null, "e": 422, "s": 28, "text": "MongoDB provides different types of comparison operators and inequality or not equals operator( $ne ) is one of them. This operator is used to select those documents where the...
Python - Data Science Tutorial	Data is the new Oil. This statement shows how every modern IT system is driven by capturing, storing and analysing data for various needs. Be it about making decision for business, forecasting weather, studying protein structures in biology or designing a marketing campaign. All of these scenarios involve a multidiscip...	[ { "code": null, "e": 3376, "s": 2663, "text": "Data is the new Oil. This statement shows how every modern IT system is driven by capturing, storing and analysing data for various needs. Be it about making decision for business, forecasting weather, studying protein structures in biology or designing...
Java and Multiple Inheritance	17 Dec, 2021 Multiple Inheritance is a feature of an object-oriented concept, where a class can inherit properties of more than one parent class. The problem occurs when there exist methods with the same signature in both the superclasses and subclass. On calling the method, the compiler cannot determine which class me...	[ { "code": null, "e": 54, "s": 26, "text": "\n17 Dec, 2021" }, { "code": null, "e": 438, "s": 54, "text": "Multiple Inheritance is a feature of an object-oriented concept, where a class can inherit properties of more than one parent class. The problem occurs when there exist metho...
set_page_load_timeout driver method – Selenium Python	24 Oct, 2021 Selenium’s Python Module is built to perform automated testing with Python. Selenium Python bindings provides a simple API to write functional/acceptance tests using Selenium WebDriver. To open a webpage using Selenium Python, checkout – Navigating links using get method – Selenium Python. Just being able ...	[ { "code": null, "e": 28, "s": 0, "text": "\n24 Oct, 2021" }, { "code": null, "e": 970, "s": 28, "text": "Selenium’s Python Module is built to perform automated testing with Python. Selenium Python bindings provides a simple API to write functional/acceptance tests using Selenium ...
Zoho Interview Experience \| Off-Campus January 2021	23 Jun, 2021 Hello everyone, the interview had 6 rounds, and it was completely online because of the corona lockdown. If you have applied for Zoho, all the best. Let’s get started! Round 1: Guess the output and aptitude questions (~2 hours) Find the output of 20 questions in C language (no errors in code) and 15 gener...	[ { "code": null, "e": 52, "s": 24, "text": "\n23 Jun, 2021" }, { "code": null, "e": 220, "s": 52, "text": "Hello everyone, the interview had 6 rounds, and it was completely online because of the corona lockdown. If you have applied for Zoho, all the best. Let’s get started!" }, ...
MONTHNAME() Function in MySQL	02 Dec, 2020 MONTHNAME() function in MySQL is used to find month name from the given date. It Returns 0 when MONTH part for the date is 0 or greater than 12 otherwise it returns month name between January to December. Syntax : MONTHNAME(date) Parameter : This method accepts one parameter as mentioned above and describ...	[ { "code": null, "e": 28, "s": 0, "text": "\n02 Dec, 2020" }, { "code": null, "e": 233, "s": 28, "text": "MONTHNAME() function in MySQL is used to find month name from the given date. It Returns 0 when MONTH part for the date is 0 or greater than 12 otherwise it returns month name...
SQL \| INTERSECT Clause	09 Nov, 2020 The INTERSECT clause in SQL is used to combine two SELECT statements but the dataset returned by the INTERSECT statement will be the intersection of the data-sets of the two SELECT statements. In simple words, the INTERSECT statement will return only those rows which will be common to both of the SELECT st...	[ { "code": null, "e": 52, "s": 24, "text": "\n09 Nov, 2020" }, { "code": null, "e": 369, "s": 52, "text": "The INTERSECT clause in SQL is used to combine two SELECT statements but the dataset returned by the INTERSECT statement will be the intersection of the data-sets of the two ...
Write a dictionary to a file in Python	29 Dec, 2020 Dictionary is used to store data values in the form of key:value pairs. In this article we will see how to write dictionary into a file. Actually we can only write a string to a file. If we want to write a dictionary object, we either need to convert it into string using json or serialize it. Method:1 Stor...	[ { "code": null, "e": 54, "s": 26, "text": "\n29 Dec, 2020" }, { "code": null, "e": 348, "s": 54, "text": "Dictionary is used to store data values in the form of key:value pairs. In this article we will see how to write dictionary into a file. Actually we can only write a string t...
How to Automate an Excel Sheet in Python?	11 Jul, 2022 Before you read this article and learn automation in Python....let’s watch a video of Christian Genco (a talented programmer and an entrepreneur) explaining the importance of coding by taking the example of automation. You might have laughed loudly after watching this video and you surely, you might have u...	[ { "code": null, "e": 53, "s": 25, "text": "\n11 Jul, 2022" }, { "code": null, "e": 272, "s": 53, "text": "Before you read this article and learn automation in Python....let’s watch a video of Christian Genco (a talented programmer and an entrepreneur) explaining the importance of...
How to count the number of times a button is clicked using JavaScript ?	29 Jan, 2021 We have given a button, and the task is to count how many times the button is clicked using JavaScript. Approach: First, we will create a HTML button and a paragraph element where we display the button click count. When the button is clicked, the JavaScript function called. We declare a count variable and...	[ { "code": null, "e": 28, "s": 0, "text": "\n29 Jan, 2021" }, { "code": null, "e": 133, "s": 28, "text": "We have given a button, and the task is to count how many times the button is clicked using JavaScript. " }, { "code": null, "e": 446, "s": 133, "text": "A...
Drop columns in DataFrame by label Names or by Index Positions	02 Jul, 2020 In this article, we will discuss how to drop columns in Pandas Dataframe by label Names or by Index Positions. Drop columns from a DataFrame can be achieved in multiple ways. Let’s create a simple dataframe with a dictionary of lists, say column names are: ‘Name’, ‘Age’, ‘Place’, ‘College’. # import pandas...	[ { "code": null, "e": 28, "s": 0, "text": "\n02 Jul, 2020" }, { "code": null, "e": 203, "s": 28, "text": "In this article, we will discuss how to drop columns in Pandas Dataframe by label Names or by Index Positions. Drop columns from a DataFrame can be achieved in multiple ways."...
How to find index of any Currency Symbols in a given string	16 Feb, 2021 Given a string txt, the task is to find the index of currency symbols present in the given string.Examples: Input: txt = “Currency symbol of USA is $”; Output: 26 Explanation : The symbol $ is present at index 33.Input: txt = “One US Dollar($) is equal to 75.70 Indian Rupee.”; Output: 14 Naive Approa...	[ { "code": null, "e": 28, "s": 0, "text": "\n16 Feb, 2021" }, { "code": null, "e": 138, "s": 28, "text": "Given a string txt, the task is to find the index of currency symbols present in the given string.Examples: " }, { "code": null, "e": 321, "s": 138, "text...
Decision Tree Essentials for Every Data Scientist \| by Robert Wood \| Towards Data Science	Decision trees can be an incredibly useful classification method that lends very well to getting up and running with minimal code. I have used some form of decision tree to predict the likelihood a customer would churn, customer conversion, new product adoption, new feature adoption, among many other useful application...	[ { "code": null, "e": 303, "s": 172, "text": "Decision trees can be an incredibly useful classification method that lends very well to getting up and running with minimal code." }, { "code": null, "e": 495, "s": 303, "text": "I have used some form of decision tree to predict the l...
OAuth 2.0 - Accessing a Protected Resource	The client provides an access token to the resource server to access protected resources. The resource server must validate and verify that the access token is valid and has not expired. There are two standard ways of sending credentials − Bearer Token − The access token can only be placed in POST request body or GET U...	[ { "code": null, "e": 1972, "s": 1785, "text": "The client provides an access token to the resource server to access protected resources. The resource server must validate and verify that the access token is valid and has not expired." }, { "code": null, "e": 2025, "s": 1972, "tex...
Feature Selection using Logistic Regression Model \| by Satyam Kumar \| Towards Data Science	Feature Engineering is an important component of a data science model development pipeline. ‘More data leads to a better machine learning model’, holds true for the number of instances but not for the number of features. A data scientist spends most of the work time preparing relevant features to train a robust machine...	[ { "code": null, "e": 392, "s": 171, "text": "Feature Engineering is an important component of a data science model development pipeline. ‘More data leads to a better machine learning model’, holds true for the number of instances but not for the number of features." }, { "code": null, "e...
Setting up TensorFlow (GPU) on Windows 10 \| by Peter Jang \| Towards Data Science	Personally, I despise spending hours setting up machine learning tools for training — especially on Windows. After many trials and errors for the past few years (i.e. Googling and StackOverflow-ing), I’ve decided to share a method I’ve come up with for setting up TensorFlow. I dedicate this article to other data scient...	[ { "code": null, "e": 280, "s": 171, "text": "Personally, I despise spending hours setting up machine learning tools for training — especially on Windows." }, { "code": null, "e": 447, "s": 280, "text": "After many trials and errors for the past few years (i.e. Googling and StackO...
Java - String intern() Method	This method returns a canonical representation for the string object. It follows that for any two strings s and t, s.intern() == t.intern() is true if and only if s.equals(t) is true. Here is the syntax of this method − public String intern() Here is the detail of parameters − This is a default method and this do not...	[ { "code": null, "e": 2561, "s": 2377, "text": "This method returns a canonical representation for the string object. It follows that for any two strings s and t, s.intern() == t.intern() is true if and only if s.equals(t) is true." }, { "code": null, "e": 2598, "s": 2561, "text":...
Find number of subarrays with even sum - GeeksforGeeks	10 Feb, 2022 Given an array, find the number of subarrays whose sum is even. Example : Input : arr[] = {1, 2, 2, 3, 4, 1} Output : 9 There are possible subarrays with even sum. The subarrays are 1) {1, 2, 2, 3} Sum = 8 2) {1, 2, 2, 3, 4} Sum = 12 3) {2} Sum = 2 (At index 1) 4) {2, 2} Sum = 4 5) {2, 2, 3, 4, 1} ...	[ { "code": null, "e": 24325, "s": 24297, "text": "\n10 Feb, 2022" }, { "code": null, "e": 24389, "s": 24325, "text": "Given an array, find the number of subarrays whose sum is even." }, { "code": null, "e": 24400, "s": 24389, "text": "Example : " }, { "...
Android - Image Switcher	Sometimes you don't want an image to appear abruptly on the screen, rather you want to apply some kind of animation to the image when it transitions from one image to another. This is supported by android in the form of ImageSwitcher. An image switcher allows you to add some transitions on the images through the way th...	[ { "code": null, "e": 3842, "s": 3607, "text": "Sometimes you don't want an image to appear abruptly on the screen, rather you want to apply some kind of animation to the image when it transitions from one image to another. This is supported by android in the form of ImageSwitcher." }, { "cod...
Python Program to convert Kilometers to Miles	In this article, we will learn about the solution to the problem statement given below. Problem statement − We are given distance in kilometers and we need to convert it into miles As we know that 1 kilometer equals 0.62137 miles. Miles = kilometer * 0.62137 Now let’s observe the concept in the implementation below− L...	[ { "code": null, "e": 1150, "s": 1062, "text": "In this article, we will learn about the solution to the problem statement given below." }, { "code": null, "e": 1243, "s": 1150, "text": "Problem statement − We are given distance in kilometers and we need to convert it into miles" ...
Batch Script - START	This batch command starts a program in new window, or opens a document. START “programname” @echo off start notepad.exe When the batch file is executed, a new notepad windows will start. Print Add Notes Bookmark this page	[ { "code": null, "e": 2241, "s": 2169, "text": "This batch command starts a program in new window, or opens a document." }, { "code": null, "e": 2262, "s": 2241, "text": "START “programname”\n" }, { "code": null, "e": 2290, "s": 2262, "text": "@echo off\nstart ...
C Program to list all files and sub-directories in a directory	Here, we are given a directory. Our task is to create a C program to list all files and sub-directories in a directory. The directory is a place/area/location where a set of the file(s) will be stored. Subdirectory is a directory inside the root directory, in turn, it can have another sub-directory in it. In C programm...	[ { "code": null, "e": 1182, "s": 1062, "text": "Here, we are given a directory. Our task is to create a C program to list all files and sub-directories in a directory." }, { "code": null, "e": 1264, "s": 1182, "text": "The directory is a place/area/location where a set of the file...
Creating Sequential Stream from an Iterator in Java - GeeksforGeeks	11 Dec, 2018 Iterators, in Java, are used in Collection Framework to retrieve elements one by one. A stream in Java is a pipeline of objects from an array or a collection data source. A sequential stream is one in which the objects are pipelined in a single stream on the same processing system. Other types of stream in...	[ { "code": null, "e": 24139, "s": 24111, "text": "\n11 Dec, 2018" }, { "code": null, "e": 24225, "s": 24139, "text": "Iterators, in Java, are used in Collection Framework to retrieve elements one by one." }, { "code": null, "e": 24531, "s": 24225, "text": "A st...
Introducing Bamboolib — a GUI for Pandas \| by Dario Radečić \| Towards Data Science	He states, and I quote: Our goal is to help people quickly learn and work with pandas, and we want to onboard the next generation of python data scientists. I have to admit, I was skeptical at first, mainly because I’m not a big fan of GUI tools and drag & drop principle in general. Still, I’ve opened the URL and watch...	[ { "code": null, "e": 196, "s": 172, "text": "He states, and I quote:" }, { "code": null, "e": 329, "s": 196, "text": "Our goal is to help people quickly learn and work with pandas, and we want to onboard the next generation of python data scientists." }, { "code": null, ...
Python 3 - String replace() Method	The replace() method returns a copy of the string in which the occurrences of old have been replaced with new, optionally restricting the number of replacements to max. Following is the syntax for replace() method − str.replace(old, new[, max]) old − This is old substring to be replaced. old − This is old substring to...	[ { "code": null, "e": 2509, "s": 2340, "text": "The replace() method returns a copy of the string in which the occurrences of old have been replaced with new, optionally restricting the number of replacements to max." }, { "code": null, "e": 2556, "s": 2509, "text": "Following is ...
Create AI for your Own Board Game From Scratch — AlphaZero-Part 3 \| by Haryo Akbarianto Wibowo \| Towards Data Science	Hello everyone, welcome to the part 3 of making AI on the EvoPawness (Temporary Name). In this article, we will implement AlphaZero Algorithm to the game. This article will tell you a short summary of the AlphaZero and the implementation of the AlphaZero, albeit the simplified one. We will do it in a step by step. We w...	[ { "code": null, "e": 607, "s": 172, "text": "Hello everyone, welcome to the part 3 of making AI on the EvoPawness (Temporary Name). In this article, we will implement AlphaZero Algorithm to the game. This article will tell you a short summary of the AlphaZero and the implementation of the AlphaZero,...
How to create a Tkinter error message box?	The Tkinter library has many built-in functions and methods which can be used to implement the functional part of an application. We can use messagebox module in Tkinter to create various popup dialog boxes. The messagebox property has different types of built-in popup windows that the users can use in their applicatio...	[ { "code": null, "e": 1386, "s": 1062, "text": "The Tkinter library has many built-in functions and methods which can be used to implement the functional part of an application. We can use messagebox module in Tkinter to create various popup dialog boxes. The messagebox property has different types o...
Python library PyTube to download youtube videos	You know “youtube” right? Yes that most famous video sharing website especially in india . Most of the time, you like some videos and you try to download that video so as to check it later/offline. Then you come across “youtube-downloader” app to download youtube videos from the youtube website. But most of the apps co...	[ { "code": null, "e": 1747, "s": 1062, "text": "You know “youtube” right? Yes that most famous video sharing website especially in india . Most of the time, you like some videos and you try to download that video so as to check it later/offline. Then you come across “youtube-downloader” app to downlo...
What happens when a function is called before its declaration in C?	If we do not use some function prototypes, and the function body is declared in some section which is present after the calling statement of that function. In such a case, the compiler thinks that the default return type is an integer. But if the function returns some other type of value, it returns an error. If the re...	[ { "code": null, "e": 1479, "s": 1062, "text": "If we do not use some function prototypes, and the function body is declared in some section which is present after the calling statement of that function. In such a case, the compiler thinks that the default return type is an integer. But if the functi...
Convert a BST to a Binary Tree such that sum of all greater keys is added to every key	02 Feb, 2022 Given a Binary Search Tree (BST), convert it to a Binary Tree such that every key of the original BST is changed to key plus sum of all greater keys in BST. Examples: Input: Root of following BST 5 / \ 2 13 Output: The given BST is converted to following Binary ...	[ { "code": null, "e": 25246, "s": 25218, "text": "\n02 Feb, 2022" }, { "code": null, "e": 25414, "s": 25246, "text": "Given a Binary Search Tree (BST), convert it to a Binary Tree such that every key of the original BST is changed to key plus sum of all greater keys in BST. Exampl...
Data Science 101. A Step-by-Step Guide \| Towards Data Science	IntroductionProblem StatementData CollectionExploratory Data AnalysisFeature EngineeringModel ComparisonResults DiscussionSummaryReferences Introduction Problem Statement Data Collection Exploratory Data Analysis Feature Engineering Model Comparison Results Discussion Summary References There is a certain trend in all ...	[ { "code": null, "e": 312, "s": 172, "text": "IntroductionProblem StatementData CollectionExploratory Data AnalysisFeature EngineeringModel ComparisonResults DiscussionSummaryReferences" }, { "code": null, "e": 325, "s": 312, "text": "Introduction" }, { "code": null, "...
Write a Golang program to reverse an array	Input arr = [3, 5, 7, 9, 10, 4] => [4, 10, 9, 7, 5, 3] Input arr = [1, 2, 3, 4, 5] => [5, 4, 3, 2, 1] Step 1: Define a function that accepts an array. Step 2: Start iterating the input array. Step 3: Swap first element with last element of the given array. Step 4: Return array. Live Demo package main import "fmt" func...	[ { "code": null, "e": 1117, "s": 1062, "text": "Input arr = [3, 5, 7, 9, 10, 4] => [4, 10, 9, 7, 5, 3]" }, { "code": null, "e": 1164, "s": 1117, "text": "Input arr = [1, 2, 3, 4, 5] => [5, 4, 3, 2, 1]" }, { "code": null, "e": 1213, "s": 1164, "text": "Step 1: D...
Perl \| Loops (for, foreach, while, do...while, until, Nested loops) - GeeksforGeeks	16 Jun, 2021 Looping in programming languages is a feature which facilitates the execution of a set of instructions or functions repeatedly while some condition evaluates to true. Loops make the programmers task simpler. Perl provides the different types of loop to handle the condition based situation in the program. T...	[ { "code": null, "e": 25280, "s": 25252, "text": "\n16 Jun, 2021" }, { "code": null, "e": 25611, "s": 25280, "text": "Looping in programming languages is a feature which facilitates the execution of a set of instructions or functions repeatedly while some condition evaluates to tr...
Using Open Source Prophet Package to Make Future Predictions in R \| by Harel Rechavia \| Towards Data Science	Almost every company wishes to answer where they will be one week/month/year from now.The answers to those questions can be valuable when planning the company’s infrastructure, KPIs (key performance indicators) and worker goals.Hence, using data forecasting tools are one of the common tasks data professionals are being...	[ { "code": null, "e": 511, "s": 172, "text": "Almost every company wishes to answer where they will be one week/month/year from now.The answers to those questions can be valuable when planning the company’s infrastructure, KPIs (key performance indicators) and worker goals.Hence, using data forecasti...
Java Cryptography - Verifying Signature	You can create digital signature using Java and verify it following the steps given below. The KeyPairGenerator class provides getInstance() method which accepts a String variable representing the required key-generating algorithm and returns a KeyPairGenerator object that generates keys. Create KeyPairGenerator object...	[ { "code": null, "e": 2144, "s": 2053, "text": "You can create digital signature using Java and verify it following the steps given below." }, { "code": null, "e": 2343, "s": 2144, "text": "The KeyPairGenerator class provides getInstance() method which accepts a String variable re...
SAS - Macros	SAS has a powerful programming feature called Macros which allows us to avoid repetitive sections of code and to use them again and again when needed. It also helps create dynamic variables within the code that can take different values for different run instances of the same code. Macros can also be declared for block...	[ { "code": null, "e": 3038, "s": 2583, "text": "SAS has a powerful programming feature called Macros which allows us to avoid repetitive sections of code and to use them again and again when needed. It also helps create dynamic variables within the code that can take different values for different ru...
Increase and decrease row value by 1 in MySQL with Stored Procedure?	Let us first create a table to increase and adecrease row value by 1. The following is the query − mysql> create table IncrementAndDecrementValue −> ( −> UserId int, −> UserScores int −> ); Query OK, 0 rows affected (0.60 sec) Insert some records in the table using insert command. The query is as follows − ...	[ { "code": null, "e": 1161, "s": 1062, "text": "Let us first create a table to increase and adecrease row value by 1. The following is the query −" }, { "code": null, "e": 1301, "s": 1161, "text": "mysql> create table IncrementAndDecrementValue\n −> (\n −> UserId int,\n −> U...
Ionic - Quick Guide	Ionic is a front-end HTML framework built on top of AngularJS and Cordova. As per their official document, the definition of this Ionic Open Source Framework is as follows − Ionic is an HTML5 Mobile App Development Framework targeted at building hybrid mobile apps. Think of Ionic as the front-end UI framework that hand...	[ { "code": null, "e": 2637, "s": 2463, "text": "Ionic is a front-end HTML framework built on top of AngularJS and Cordova. As per their official document, the definition of this Ionic Open Source Framework is as follows −" }, { "code": null, "e": 3015, "s": 2637, "text": "Ionic is...
Java Program to Check if a given matrix is sparse or not - GeeksforGeeks	13 Jan, 2022 A matrix is a two-dimensional data object having m rows and n columns, therefore a total of m*n values. If most of the values of a matrix are 0 then we say that the matrix is sparse. Consider a definition of Sparse where a matrix is considered sparse if the number of 0s is more than half of the elements in...	[ { "code": null, "e": 23635, "s": 23607, "text": "\n13 Jan, 2022" }, { "code": null, "e": 23955, "s": 23635, "text": "A matrix is a two-dimensional data object having m rows and n columns, therefore a total of m*n values. If most of the values of a matrix are 0 then we say that th...
C# \| Char.IsUpper() Method - GeeksforGeeks	01 Feb, 2019 In C#, Char.IsUpper() is a System.Char struct method which is used to check whether a Unicode character can be categorized as an uppercase letter or not. Valid uppercase letters will be the members of the UnicodeCategory: UppercaseLetter. This method can be overloaded by passing different type and number o...	[ { "code": null, "e": 23271, "s": 23243, "text": "\n01 Feb, 2019" }, { "code": null, "e": 23597, "s": 23271, "text": "In C#, Char.IsUpper() is a System.Char struct method which is used to check whether a Unicode character can be categorized as an uppercase letter or not. Valid upp...