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How to update DB2 table with a duplicate primary key?	To maintain the integrity of a DB2 table the primary key is always unique in the entire table. For example, if we have a DB2 table ORDERS which stores all the orders and the primary key of the table is column ORDER_ID. Then there can be only a single row having a particular order id. This will be useful to identify an ...	[ { "code": null, "e": 1400, "s": 1062, "text": "To maintain the integrity of a DB2 table the primary key is always unique in the entire\ntable. For example, if we have a DB2 table ORDERS which stores all the orders and the\nprimary key of the table is column ORDER_ID. Then there can be only a single ...
How to get signal strength in android?	This example demonstrate about How to get signal strength 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"?> <LinearLayout xml...	[ { "code": null, "e": 1132, "s": 1062, "text": "This example demonstrate about How to get signal strength in android." }, { "code": null, "e": 1261, "s": 1132, "text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to creat...
An AI agent plays tic-tac-toe (part 1): building the opponent to play against \| by Paul Hiemstra \| Towards Data Science	Where we build a brute force minimax tree search which will serve as the opponent to our reinforcement learning approach This article is part of a series that lets a computer play tic-tac-toe using reinforcement learning. You can find all the articles here. The goal is to provide a complete implementation that you can ...	[ { "code": null, "e": 167, "s": 46, "text": "Where we build a brute force minimax tree search which will serve as the opponent to our reinforcement learning approach" }, { "code": null, "e": 532, "s": 167, "text": "This article is part of a series that lets a computer play tic-tac...
Who Is Your Golden Goose?: Cohort Analysis \| by Jiwon Jeong \| Towards Data Science	Customer segmentation is the technique of diving customers into groups based on their purchase patterns to identify who are the most profitable groups. In segmenting customers, various criteria can also be used depending on the market such as geographic, demographic characteristics or behavior bases. This technique ass...	[ { "code": null, "e": 653, "s": 171, "text": "Customer segmentation is the technique of diving customers into groups based on their purchase patterns to identify who are the most profitable groups. In segmenting customers, various criteria can also be used depending on the market such as geographic, ...
Transfer Learning using ELMO Embeddings \| by Sambit Mahapatra \| Towards Data Science	Last year, the major developments in “Natural Language Processing” were about Transfer Learning. Basically, Transfer Learning is the process of training a model on a large-scale dataset and then using that pre-trained model to process learning for another target task. Transfer Learning became popular in the field of NL...	[ { "code": null, "e": 600, "s": 171, "text": "Last year, the major developments in “Natural Language Processing” were about Transfer Learning. Basically, Transfer Learning is the process of training a model on a large-scale dataset and then using that pre-trained model to process learning for another...
Convert character array to string in Arduino	In order to convert a character array to a string, the String() constructor can be used. An example is shown below − void setup() { // put your setup code here, to run once: Serial.begin(9600); Serial.println(); char buf[10] = "Hello!"; Serial.print("Char array: "); Serial.println(buf); String s =...	[ { "code": null, "e": 1179, "s": 1062, "text": "In order to convert a character array to a string, the String() constructor can be used. An example is shown below −" }, { "code": null, "e": 1515, "s": 1179, "text": "void setup() {\n // put your setup code here, to run once:\n ...
How to open new tab in same browser and switch between them using Selenium?	We can open new tabs in the same browser and switch between them using Selenium webdriver. Firstly, to open a new tab in the same browser we have to take the help of the methods – Keys.chord and sendKeys. The parameters Keys.CONTROL and Keys.ENTER are passed to the Keys.chord method. This method yields a string value a...	[ { "code": null, "e": 1267, "s": 1062, "text": "We can open new tabs in the same browser and switch between them using Selenium webdriver. Firstly, to open a new tab in the same browser we have to take the help of the methods – Keys.chord and sendKeys." }, { "code": null, "e": 1439, "...
How to implement Python __lt__ __gt__ custom (overloaded) operators?	Python has magic methods to define overloaded behaviour of operators. The comparison operators (<, <=, >, >=, == and !=) can be overloaded by providing definition to __lt__, __le__, __gt__, __ge__, __eq__ and __ne__ magic methods. Following program overloads < and > operators to compare objects of distance class. cla...	[ { "code": null, "e": 1379, "s": 1062, "text": "Python has magic methods to define overloaded behaviour of operators. The comparison operators (<, <=, >, >=, == and !=) can be overloaded by providing definition to __lt__, __le__, __gt__, __ge__, __eq__ and __ne__ magic methods. Following program ove...
Using CNNs and RNNs for Music Genre Recognition \| by Priya Dwivedi \| Towards Data Science	Audio data is becoming an important part of machine learning. We are using audio to interact with smart agents like Siri and Alexa. Audio will also be important for self-driving cars so they can not only “see” their surroundings but “hear” them as well. I wanted to explore deep learning techniques on audio files and mu...	[ { "code": null, "e": 887, "s": 172, "text": "Audio data is becoming an important part of machine learning. We are using audio to interact with smart agents like Siri and Alexa. Audio will also be important for self-driving cars so they can not only “see” their surroundings but “hear” them as well. I...
Intersection of Two Linked Lists in C++	A Linked List is a linear data structure in which each node has two blocks such that one block contains the value or data of the node and the other block contains the address of the next field. Let us assume that we have a linked list such that each node contains a random pointer which is pointing to the other nodes in...	[ { "code": null, "e": 1256, "s": 1062, "text": "A Linked List is a linear data structure in which each node has two blocks such that one block contains the value or data of the node and the other block contains the address of the next field." }, { "code": null, "e": 1532, "s": 1256, ...
How to Set Classpath in Java? - GeeksforGeeks	20 Nov, 2020 CLASSPATH describes the location where all the required files are available which are used in the application. Java Compiler and JVM (Java Virtual Machine) use CLASSPATH to locate the required files. If the CLASSPATH is not set, Java Compiler will not be able to find the required files and hence will throw...	[ { "code": null, "e": 24354, "s": 24326, "text": "\n20 Nov, 2020" }, { "code": null, "e": 24683, "s": 24354, "text": "CLASSPATH describes the location where all the required files are available which are used in the application. Java Compiler and JVM (Java Virtual Machine) use CLA...
Main thread vs child thread in C#	The first thread to be executed in a process is called the main thread. When a C# program starts execution, the main thread is automatically created. The threads created using the Thread class are called the child threads of the main thread. Here is an example showing how to create a main and child thread − Live Demo ...	[ { "code": null, "e": 1212, "s": 1062, "text": "The first thread to be executed in a process is called the main thread. When a C# program starts execution, the main thread is automatically created." }, { "code": null, "e": 1304, "s": 1212, "text": "The threads created using the Th...
Battleships in a Board in C++	Suppose we have an 2D board, we have to count how many battleships are in it. The battleships are represented with the symbol 'X', empty slots are represented with '.'s. We can assume these rules − You receive a valid board, made of only battleships or empty slots. You receive a valid board, made of only battleships or...	[ { "code": null, "e": 1260, "s": 1062, "text": "Suppose we have an 2D board, we have to count how many battleships are in it. The battleships are represented with the symbol 'X', empty slots are represented with '.'s. We can assume these rules −" }, { "code": null, "e": 1328, "s": 126...
Groovy - Object Oriented	In Groovy, as in any other Object-Oriented language, there is the concept of classes and objects to represent the objected oriented nature of the programming language. A Groovy class is a collection of data and the methods that operate on that data. Together, the data and methods of a class are used to represent some r...	[ { "code": null, "e": 2600, "s": 2238, "text": "In Groovy, as in any other Object-Oriented language, there is the concept of classes and objects to represent the objected oriented nature of the programming language. A Groovy class is a collection of data and the methods that operate on that data. Tog...
Enum in a class in Java	Yes, we can create Enum in a class in Java. Set the enum inside the class. Here, we have an Enum with four constants − enum Devices { LAPTOP, MOBILE, TABLET, DESKTOP; } Now, create objects inside the main() method − Devices d = Devices.MOBILE; System.out.println(d); d = Devices.DESKTOP; System.out.println(d); The follo...	[ { "code": null, "e": 1106, "s": 1062, "text": "Yes, we can create Enum in a class in Java." }, { "code": null, "e": 1181, "s": 1106, "text": "Set the enum inside the class. Here, we have an Enum with four constants −" }, { "code": null, "e": 1231, "s": 1181, "...
Distributed Data Pre-processing using Dask, Amazon ECS and Python (Part 2) \| by Will Badr \| Towards Data Science	In Part 1 of this series, I explained how to build a serverless cluster of Dask scheduler and workers on AWS Fargate. Scaling the number of workers up and down is quite simple. You can achieve that by running the below AWS CLI commands: bash~# aws ecs update-service — service Dask-Workers — desired-count 10 — cluster F...	[ { "code": null, "e": 408, "s": 171, "text": "In Part 1 of this series, I explained how to build a serverless cluster of Dask scheduler and workers on AWS Fargate. Scaling the number of workers up and down is quite simple. You can achieve that by running the below AWS CLI commands:" }, { "cod...
Ext.js - Themes	Ext.js provides a number of themes to be used in your applications. You can add a different theme in place of a classic theme and see the difference in the output. This is done simply by replacing the theme CSS file as explained ahead. Consider your very first Hello World application. Remove the following CSS from the ...	[ { "code": null, "e": 2259, "s": 2023, "text": "Ext.js provides a number of themes to be used in your applications. You can add a different theme in place of a classic theme and see the difference in the output. This is done simply by replacing the theme CSS file as explained ahead." }, { "co...
C++ Map Library - ~map() Function	The C++ destructor std::map::~map() destroys map object by deallocating it's memory. Following is the declaration for std::map::~map() function form std::map header. ~map(); None Destructor never returns value. This member function never throws exception. Linear i.e. O(n) Print Add Notes Bookmark this page	[ { "code": null, "e": 2688, "s": 2603, "text": "The C++ destructor std::map::~map() destroys map object by deallocating it's memory." }, { "code": null, "e": 2769, "s": 2688, "text": "Following is the declaration for std::map::~map() function form std::map header." }, { "c...
chr () in Python	This function return the string representing a character whose Unicode code point is the integer supplied as parameter to this function. For example, chr(65) returns the string 'A', while chr(126) returns the string '~'. The syntax of the function is as below. chr(n) where n is an integer value The below program shows ...	[ { "code": null, "e": 1283, "s": 1062, "text": "This function return the string representing a character whose Unicode code point is the integer supplied as parameter to this function. For example, chr(65) returns the string 'A', while chr(126) returns the string '~'." }, { "code": null, ...
How to limit Database Resources per Session in Oracle?	Problem: You want to limit the amount of resources a user can consume in your database. Solution To limit the resources, we can follow below steps. We can use below SQL statement to view the current setting of RESOURCE_LIMIT in our database. select name, value from v$parameter where name='resource_limit'; Create a prof...	[ { "code": null, "e": 1071, "s": 1062, "text": "Problem:" }, { "code": null, "e": 1150, "s": 1071, "text": "You want to limit the amount of resources a user can consume in your database." }, { "code": null, "e": 1159, "s": 1150, "text": "Solution" }, { ...
Rexx - ADDRESS	This method returns the name of the environment in the which the Rexx commands are currently running in. ADDRESS() None This method returns the name of the environment in the which the Rexx commands are currently running in. /* Main program */ say ADDRESS() When we run the above program we will get the following res...	[ { "code": null, "e": 2444, "s": 2339, "text": "This method returns the name of the environment in the which the Rexx commands are currently running in." }, { "code": null, "e": 2456, "s": 2444, "text": "ADDRESS() \n" }, { "code": null, "e": 2461, "s": 2456, "t...
std::basic_istream::gcount() in C++ with Examples - GeeksforGeeks	21 May, 2020 The std::basic_istream::gcount() is used to count the characters in the given string. It returns the number of characters extracted by the last unformatted input operation. The unformatted input operation is returned by these function: get(), getline(), ignore(), peek(), read(), etc. Header File: <iostream...	[ { "code": null, "e": 25343, "s": 25315, "text": "\n21 May, 2020" }, { "code": null, "e": 25628, "s": 25343, "text": "The std::basic_istream::gcount() is used to count the characters in the given string. It returns the number of characters extracted by the last unformatted input o...
Print the nodes of Binary Tree having a grandchild	13 Aug, 2021 Given a Binary Tree, the task is to print the nodes that have grandchildren. Examples: Input: Output: 20 8 Explanation: 20 and 8 are the grandparents of 4, 12 and 10, 14. Input: Output: 1 Explanation: 1 is the grandparent of 4, 5. Approach: The idea uses Recursion. Below are the steps: Traverse the ...	[ { "code": null, "e": 28, "s": 0, "text": "\n13 Aug, 2021" }, { "code": null, "e": 105, "s": 28, "text": "Given a Binary Tree, the task is to print the nodes that have grandchildren." }, { "code": null, "e": 116, "s": 105, "text": "Examples: " }, { "cod...
printf command in Linux with Examples	18 Feb, 2021 “printf” command in Linux is used to display the given string, number or any other format specifier on the terminal window. It works the same way as “printf” works in programming languages like C. Syntax: $printf [-v var] format [arguments] Note: printf can have format specifiers, escape sequences or ordi...	[ { "code": null, "e": 53, "s": 25, "text": "\n18 Feb, 2021" }, { "code": null, "e": 250, "s": 53, "text": "“printf” command in Linux is used to display the given string, number or any other format specifier on the terminal window. It works the same way as “printf” works in program...
Python String rstrip() Method	19 Aug, 2021 Python String rstrip() method returns a copy of the string with trailing characters removed (based on the string argument passed). If no argument is passed, it removes trailing spaces. Syntax: string.rstrip([chars]) Parameters: chars (optional) – a string specifying the set of characters to be removed. Re...	[ { "code": null, "e": 53, "s": 25, "text": "\n19 Aug, 2021" }, { "code": null, "e": 238, "s": 53, "text": "Python String rstrip() method returns a copy of the string with trailing characters removed (based on the string argument passed). If no argument is passed, it removes traili...
Using Network Science to explore hashtag culture on Instagram \| by Sam Ho \| Towards Data Science	This project proposes that Network Science and graph theory can be used to effectively analyse hashtag culture on Instagram. The relational characteristics of Instagram hashtags can be realised through these techniques and this allows for deeper understanding of conversations and themes found across hashtags. To demons...	[ { "code": null, "e": 483, "s": 172, "text": "This project proposes that Network Science and graph theory can be used to effectively analyse hashtag culture on Instagram. The relational characteristics of Instagram hashtags can be realised through these techniques and this allows for deeper understan...
D3.js node.sort() Function - GeeksforGeeks	31 Aug, 2020 The node.sort() function in D3.js is used to sort the children at each level of the given hierarchical data. The comparator function can be used to define the basis on which the sorting would be done. Syntax: node.sort( compare ) Parameters: This function accepts a single parameter as mentioned above and d...	[ { "code": null, "e": 25300, "s": 25272, "text": "\n31 Aug, 2020" }, { "code": null, "e": 25501, "s": 25300, "text": "The node.sort() function in D3.js is used to sort the children at each level of the given hierarchical data. The comparator function can be used to define the basi...
How to create an unordered_map of pairs in C++?	In this tutorial, we will be discussing a program to understand how to create an unordered map of pairs in C++. Unordered maps are the ones that don't contain hash function for the pairs by default. If we want a hash value for a particular pair, it needs to be passed on explicitly. Live Demo #include <bits/stdc++.h> u...	[ { "code": null, "e": 1174, "s": 1062, "text": "In this tutorial, we will be discussing a program to understand how to create an unordered map of pairs in C++." }, { "code": null, "e": 1345, "s": 1174, "text": "Unordered maps are the ones that don't contain hash function for the p...
Python Pandas - Create a Horizontal Bar Chart	To plot a Horizontal Bar Plot, use the pandas.DataFrame.plot.barh. A bar plot shows comparisons among discrete categories. At first, import the required libraries − import pandas as pd import matplotlib.pyplot as plt Create a Pandas DataFrame with 4 columns − dataFrame = pd.DataFrame({"Car": ['Bentley', 'Lexus', 'BMW',...	[ { "code": null, "e": 1185, "s": 1062, "text": "To plot a Horizontal Bar Plot, use the pandas.DataFrame.plot.barh. A bar plot shows comparisons among discrete categories." }, { "code": null, "e": 1227, "s": 1185, "text": "At first, import the required libraries −" }, { "co...
How to call a parent window function from an iframe using JavaScript?	To call a parent window function, use “window.top”. You can try to run the following code to call a parent window function from an iframe Live Demo <!DOCTYPE html> <html> <body> <script> function display(){ alert("Hello World!"); } </script> <iframe id="myFrame"> ...	[ { "code": null, "e": 1114, "s": 1062, "text": "To call a parent window function, use “window.top”." }, { "code": null, "e": 1200, "s": 1114, "text": "You can try to run the following code to call a parent window function from an iframe" }, { "code": null, "e": 1210, ...
\odot - Tex Command	\odot - Used to create odot symbol. { \odot} \odot command draws odot symbol. \odot ⊙ \odot ⊙ \odot 14 Lectures 52 mins Ashraf Said 11 Lectures 1 hours Ashraf Said 9 Lectures 1 hours Emenwa Global, Ejike IfeanyiChukwu 29 Lectures 2.5 hours Mohammad Nauman ...	[ { "code": null, "e": 8022, "s": 7986, "text": "\\odot - Used to create odot symbol." }, { "code": null, "e": 8031, "s": 8022, "text": "{ \\odot}" }, { "code": null, "e": 8064, "s": 8031, "text": "\\odot command draws odot symbol." }, { "code": null, ...
3-D Reconstruction with Vision. Exactly an year back, before I started... \| by Venkatesh Tata \| Towards Data Science	Exactly a year back, before I started writing this article, I watched Andrej Karapathy, the director of AI at Tesla delivering a talk where he showed the world a glimpse of how a Tesla car perceives depth using the cameras hooked to the car in-order to reconstruct its surroundings in 3D and take decisions in real-time,...	[ { "code": null, "e": 611, "s": 171, "text": "Exactly a year back, before I started writing this article, I watched Andrej Karapathy, the director of AI at Tesla delivering a talk where he showed the world a glimpse of how a Tesla car perceives depth using the cameras hooked to the car in-order to re...
C Quiz - 101 \| Question 2 - GeeksforGeeks	28 Jun, 2021 Assume int is 4 bytes, char is 1 byte and float is 4 bytes. Also, assume that pointer size is 4 bytes (i.e. typical case) char pChar;int pInt;float *pFloat; sizeof(pChar);sizeof(pInt);sizeof(pFloat); What’s the size returned for each of sizeof() operator?(A) 4 4 4(B) 1 4 4(C) 1 4 8(D) None of the aboveA...	[ { "code": null, "e": 24378, "s": 24350, "text": "\n28 Jun, 2021" }, { "code": null, "e": 24500, "s": 24378, "text": "Assume int is 4 bytes, char is 1 byte and float is 4 bytes. Also, assume that pointer size is 4 bytes (i.e. typical case)" }, { "code": "char pChar;int p...
All combinations of strings that can be used to dial a number - GeeksforGeeks	06 Nov, 2020 Given a number, print all possible combinations of strings that can be used to dial the given number in a phone with following specifications. In the given phone, we can dial,2 using A or B or C,3 using D or E or F,...................8 using T or U or V,9 using W or X or Y or Z,1 using only 10 using 0. For...	[ { "code": null, "e": 26099, "s": 26071, "text": "\n06 Nov, 2020" }, { "code": null, "e": 26242, "s": 26099, "text": "Given a number, print all possible combinations of strings that can be used to dial the given number in a phone with following specifications." }, { "code"...
GWT - TextBox Widget	The TextBox widget represents a standard single-line text box. Following is the declaration for com.google.gwt.user.client.ui.TextBox class − public class TextBox extends TextBoxBase implements HasDirection Following default CSS Style rules will be applied to all the TextBox widget. You can override it as per ...	[ { "code": null, "e": 2086, "s": 2023, "text": "The TextBox widget represents a standard single-line text box." }, { "code": null, "e": 2165, "s": 2086, "text": "Following is the declaration for com.google.gwt.user.client.ui.TextBox class −" }, { "code": null, "e": 223...
How to display Material Chip View in React Native?	To display chips in the UI, we are going to make use of React Native Paper Material Design. Install react native paper as shown below − npm install --save-dev react-native-paper The chip component looks as follows on the UI − The basic chip component is as follows − <Chip icon="icontodisplay" onPress={onPressfunc}>Chip...	[ { "code": null, "e": 1154, "s": 1062, "text": "To display chips in the UI, we are going to make use of React Native Paper Material\nDesign." }, { "code": null, "e": 1198, "s": 1154, "text": "Install react native paper as shown below −" }, { "code": null, "e": 1240, ...
Check multiple conditions in if statement - Python - GeeksforGeeks	26 Mar, 2020 If-else conditional statement is used in Python when a situation leads to two conditions and one of them should hold true. Syntax: if (condition): code1 else: code2 [on_true] if [expression] else [on_false] Note: For more information, refer to Decision Making in Python (if , if..else, Nested if, i...	[ { "code": null, "e": 24243, "s": 24215, "text": "\n26 Mar, 2020" }, { "code": null, "e": 24366, "s": 24243, "text": "If-else conditional statement is used in Python when a situation leads to two conditions and one of them should hold true." }, { "code": null, "e": 243...
How to use AlarmManager in Android?	This example demonstrates how do I use AlarmManager 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"?> <RelativeLayout xmlns:a...	[ { "code": null, "e": 1126, "s": 1062, "text": "This example demonstrates how do I use AlarmManager in android." }, { "code": null, "e": 1255, "s": 1126, "text": "Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a ne...
Spring - BeanFactory - GeeksforGeeks	02 Aug, 2021 The first foremost thing when we talk about spring is dependency injection which is possible because spring is actually a container and behaves as a factory of Beans. Just like the BeanFactory interface is the simplest container providing an advanced configuration mechanism to instantiate, configure and m...	[ { "code": null, "e": 25347, "s": 25319, "text": "\n02 Aug, 2021" }, { "code": null, "e": 26320, "s": 25347, "text": "The first foremost thing when we talk about spring is dependency injection which is possible because spring is actually a container and behaves as a factory of Bea...
TensorFlow vs PyTorch for Deep Learning \| Towards Data Science	You may be wondering whether to learn PyTorch or TensorFlow (2.0). If so hopefully this blog post can help. The idea is not to give an absolute answer here but just to show what developing and training neural networks look like in both. Before looking into the code, some things that are good to know: Both TensorFlow an...	[ { "code": null, "e": 408, "s": 171, "text": "You may be wondering whether to learn PyTorch or TensorFlow (2.0). If so hopefully this blog post can help. The idea is not to give an absolute answer here but just to show what developing and training neural networks look like in both." }, { "cod...