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IntFunction Interface in Java with Examples	08 Oct, 2018 The IntFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in an int-valued argument and produces a result of type R. This functional interface takes in only one generic, nam...	[ { "code": null, "e": 28, "s": 0, "text": "\n08 Oct, 2018" }, { "code": null, "e": 279, "s": 28, "text": "The IntFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a func...
VB.Net - Statements	A statement is a complete instruction in Visual Basic programs. It may contain keywords, operators, variables, literal values, constants and expressions. Statements could be categorized as − Declaration statements − these are the statements where you name a variable, constant, or procedure, and can also specify a data ...	[ { "code": null, "e": 2588, "s": 2434, "text": "A statement is a complete instruction in Visual Basic programs. It may contain keywords, operators, variables, literal values, constants and expressions." }, { "code": null, "e": 2625, "s": 2588, "text": "Statements could be categori...
time.perf_counter() function in Python	In this tutorial, we are going to learn about the time.perf_counter() method. The method time.perf_counter() returns a float value of time in seconds. Let's see an Live Demo # importing the time module import time # printing the time print(time.perf_counter()) If you run the above code, then you will get the following...	[ { "code": null, "e": 1265, "s": 1187, "text": "In this tutorial, we are going to learn about the time.perf_counter() method." }, { "code": null, "e": 1351, "s": 1265, "text": "The method time.perf_counter() returns a float value of time in seconds. Let's see an" }, { "cod...
SQL Query Complexity	17 Jun, 2020 Structured Query Language (SQL) is the language that is used to query Relational Databases. A typical Relational Database consists of tables, where each table has rows and columns. Every column has data of particular type. Factor dependent on SQL query complexity. Example – select * from employee where i...	[ { "code": null, "e": 53, "s": 25, "text": "\n17 Jun, 2020" }, { "code": null, "e": 318, "s": 53, "text": "Structured Query Language (SQL) is the language that is used to query Relational Databases. A typical Relational Database consists of tables, where each table has rows and co...
Regularization Method: Noise for improving Deep Learning models \| by Alex Diaz \| Towards Data Science	One of the first concepts you learn when you begin to study neural networks is the meaning of overfitting and underfitting. Sometimes, it is a challenge to train a model that generalizes your data perfectly, especially when you have a small dataset because: When you train a neural network with small datasets, the netwo...	[ { "code": null, "e": 430, "s": 172, "text": "One of the first concepts you learn when you begin to study neural networks is the meaning of overfitting and underfitting. Sometimes, it is a challenge to train a model that generalizes your data perfectly, especially when you have a small dataset becaus...
Javascript \| Program to read text File - GeeksforGeeks	12 Oct, 2018 Pre-requisite: How to import a library in JavaScript. Read from here: JavaScript \| Importing and Exporting Modules. Given a text file, write a JavaScript program to extract the contents of that file. There is a built-in Module or in-built library in NodeJs which handles all the reading operations called fs...	[ { "code": null, "e": 24422, "s": 24394, "text": "\n12 Oct, 2018" }, { "code": null, "e": 24538, "s": 24422, "text": "Pre-requisite: How to import a library in JavaScript. Read from here: JavaScript \| Importing and Exporting Modules." }, { "code": null, "e": 24933, ...
Emulating Logical Gates with a Neural Network \| by James Fulton \| Towards Data Science	In this tutorial I want to show you how you can train a neural networks to perform the function of a network of logical gates. I’m am going to dive into the purpose of each individual neuron in the network and show that none are wasted. We’ll ground this by using a problem example from Tensorflow Playground so that you...	[ { "code": null, "e": 547, "s": 172, "text": "In this tutorial I want to show you how you can train a neural networks to perform the function of a network of logical gates. I’m am going to dive into the purpose of each individual neuron in the network and show that none are wasted. We’ll ground this ...
Cleaning data with dropna in Pyspark - GeeksforGeeks	19 Jul, 2021 While dealing with a big size Dataframe which consists of many rows and columns they also consist of many NULL or None values at some row or column, or some of the rows are totally NULL or None. So in this case, if we apply an operation on the same Dataframe that contains many NULL or None values then we w...	[ { "code": null, "e": 24292, "s": 24264, "text": "\n19 Jul, 2021" }, { "code": null, "e": 24801, "s": 24292, "text": "While dealing with a big size Dataframe which consists of many rows and columns they also consist of many NULL or None values at some row or column, or some of the...
JavaScript - Complementary Colors Builder	We are required to write a JavaScript function that takes in hex color as one and only input. Our function should then find the complementary color for the color taken in as input. Here are some input and output pairs − getComplementaryColor('#142814') = '#ebd7eb'; getComplementaryColor('#ffffff') = '#000000'; getCompl...	[ { "code": null, "e": 1156, "s": 1062, "text": "We are required to write a JavaScript function that takes in hex color as one and only input." }, { "code": null, "e": 1243, "s": 1156, "text": "Our function should then find the complementary color for the color taken in as input." ...
SQL - SQRT Function	SQL SQRT function is used to find out the square root of any number. You can Use SELECT statement to find out square root of any number as follows − SQL> select SQRT(16); +----------+ \| SQRT(16) \| +----------+ \| 4.000000 \| +----------+ 1 row in set (0.00 sec) You are seeing float value here because internally SQL will...	[ { "code": null, "e": 2602, "s": 2453, "text": "SQL SQRT function is used to find out the square root of any number. You can Use SELECT statement to find out square root of any number as follows −" }, { "code": null, "e": 2714, "s": 2602, "text": "SQL> select SQRT(16);\n+--------...
Java RMI - GUI Application	In the previous chapter, we created a sample RMI application. In this chapter, we will explain how to create an RMI application where a client invokes a method which displays a GUI window (JavaFX). Here, we are defining a remote interface named Hello with a method named animation() in it. import java.rmi.Remote; impor...	[ { "code": null, "e": 1895, "s": 1697, "text": "In the previous chapter, we created a sample RMI application. In this chapter, we will explain how to create an RMI application where a client invokes a method which displays a GUI window (JavaFX)." }, { "code": null, "e": 1987, "s": 189...
How to alter the contrast of an image using Java OpenCV library?	The increasing/decreasing of brightness and contrast of an image are the operations that can be achieved by transforming the pixels of the image. this can be expressed in the form of an equation as − g(i, j) = α . f(i, j)+ β Where, (i, j) are the positions of the pixels. (i, j) are the positions of the pixels. α (gain)...	[ { "code": null, "e": 1262, "s": 1062, "text": "The increasing/decreasing of brightness and contrast of an image are the\noperations that can be achieved by transforming the pixels of the image. this can be expressed in the form of an equation as −" }, { "code": null, "e": 1287, "s": ...
Check for balanced parenthesis without using stack - GeeksforGeeks	29 Aug, 2021 Given an expression string exp, write a program to examine whether the pairs and the orders of “{“, ”}”, ”(“, ”)”, ”[“, ”]” are correct in exp. Examples: Input : exp = “[()]{}{[()()]()}” Output : true Input : exp = “[(])” Output : false We have discussed a stack based solution. Here we are not allowed to...	[ { "code": null, "e": 25004, "s": 24976, "text": "\n29 Aug, 2021" }, { "code": null, "e": 25159, "s": 25004, "text": "Given an expression string exp, write a program to examine whether the pairs and the orders of “{“, ”}”, ”(“, ”)”, ”[“, ”]” are correct in exp. Examples: " }, ...
5 Useful Things to Know in Python \| by Luay Matalka \| Towards Data Science	Python is one of the best programming languages to learn largely due to its simple syntax and vast versatility. However, due to the large amount of built-in features that it provides, it can be difficult to fully assimilate the particularly useful ones. In this tutorial, we will go over 5 features (including functions ...	[ { "code": null, "e": 555, "s": 172, "text": "Python is one of the best programming languages to learn largely due to its simple syntax and vast versatility. However, due to the large amount of built-in features that it provides, it can be difficult to fully assimilate the particularly useful ones. I...
Upsample with an average in Pandas \| by Vaclav Dekanovsky \| Towards Data Science	Many models input cumulative variables like rainfalls in a few hours or company revenue over some months. Unfortunately, the data sources are often not aligned in time. One sensor feeds the data every odd hour, another one in even hours. One company provides information in May and the other in June. If you don’t want t...	[ { "code": null, "e": 347, "s": 46, "text": "Many models input cumulative variables like rainfalls in a few hours or company revenue over some months. Unfortunately, the data sources are often not aligned in time. One sensor feeds the data every odd hour, another one in even hours. One company provid...
How to Create a Dark Mode for a Custom Android App in Kotlin? - GeeksforGeeks	14 Oct, 2020 The dark mode is a feature that allows you to switch the color theme of an app or a whole OS to black or something on the brink of it. Beyond the joys of invigorating a tired design, one may wish to choose because it makes watching the device screen way more comfortable and relaxing on the eyes. Typical pi...	[ { "code": null, "e": 25179, "s": 25151, "text": "\n14 Oct, 2020" }, { "code": null, "e": 26399, "s": 25179, "text": "The dark mode is a feature that allows you to switch the color theme of an app or a whole OS to black or something on the brink of it. Beyond the joys of invigorat...
Higher Order Numeric Differential Equations(Python) \| by Rahul Tarak \| Towards Data Science	By the nature of the topic, it is expected to have an understanding of calculus and basic programming to achieve this. Install anaconda from https://www.anaconda.com/distribution/ import numpy as npimport matplotlib.pyplot as pltfrom mpl_toolkits.mplot3d import Axes3D # For 3D Plotting of Systems I’d encourage you to p...	[ { "code": null, "e": 291, "s": 172, "text": "By the nature of the topic, it is expected to have an understanding of calculus and basic programming to achieve this." }, { "code": null, "e": 352, "s": 291, "text": "Install anaconda from https://www.anaconda.com/distribution/" }, ...
Database encryption in Java - GeeksforGeeks	02 Sep, 2020 Basically, encryption is the process or conversion of user data in code or more specifically in the cyphertext form in order to prevent unauthorized access, So, encryption is very much important in today’s world where we all are working on large datasets stored in databases and the credentials of the datab...	[ { "code": null, "e": 23948, "s": 23920, "text": "\n02 Sep, 2020" }, { "code": null, "e": 24331, "s": 23948, "text": "Basically, encryption is the process or conversion of user data in code or more specifically in the cyphertext form in order to prevent unauthorized access, So, en...
Adding user Authentication in Next.js using NextAuth - GeeksforGeeks	18 Oct, 2021 In this article, we will learn How we can add user authentication in our NextJS project. NextJS is a React-based framework. It has the power to Develop beautiful Web applications for different platforms like Windows, Linux, and mac. The linking of dynamic paths helps in rendering your NextJS components con...	[ { "code": null, "e": 25560, "s": 25532, "text": "\n18 Oct, 2021" }, { "code": null, "e": 25879, "s": 25560, "text": "In this article, we will learn How we can add user authentication in our NextJS project. NextJS is a React-based framework. It has the power to Develop beautiful W...
Gini Index vs Information Entropy \| by Andrew Hershy \| Towards Data Science	I recently published a project analyzing the performance between logistic regression and random forest. While working on the random forest component, I wanted expand on measures of impurity/information-gain, particularly Gini Index and Entropy. It’s not as well known as some other topics in machine learning, but I thin...	[ { "code": null, "e": 489, "s": 47, "text": "I recently published a project analyzing the performance between logistic regression and random forest. While working on the random forest component, I wanted expand on measures of impurity/information-gain, particularly Gini Index and Entropy. It’s not as...
Concatenation process in DFA - GeeksforGeeks	04 Jan, 2022 Prerequisite – Designing finite automata Designing a DFA for the set of string over {a, b} such that string of the language start with “a” and end with “b”. There two desired language will be formed: L1 = {a, aab, aabab, .......} L2 = {b, bbab, bbabab, .......} In L1, starting element is “a” and in L2, e...	[ { "code": null, "e": 31190, "s": 31162, "text": "\n04 Jan, 2022" }, { "code": null, "e": 31391, "s": 31190, "text": "Prerequisite – Designing finite automata Designing a DFA for the set of string over {a, b} such that string of the language start with “a” and end with “b”. There ...
How to upload an image using HTML and JavaScript in firebase ? - GeeksforGeeks	02 Nov, 2021 Firebase is a product of Google which helps developers to build, manage, and grow their apps easily. It helps developers to build their apps faster and in a more secure way. No programming is required on the firebase side which makes it easy to use its features more efficiently. It provides cloud storage. ...	[ { "code": null, "e": 26679, "s": 26651, "text": "\n02 Nov, 2021" }, { "code": null, "e": 27025, "s": 26679, "text": "Firebase is a product of Google which helps developers to build, manage, and grow their apps easily. It helps developers to build their apps faster and in a more s...
Delete all odd nodes of a Circular Linked List - GeeksforGeeks	07 Feb, 2022 Prerequisite: Delete all the even nodes of a Circular Linked ListGiven a circular singly linked list containing N nodes, the task is to delete all the odd nodes from the list. Examples: Input: 572->112->21->5->1->6 Output: 572 -> 112 -> 6 Explanation: All the odd valued nodes have been deletedInput: 9->1...	[ { "code": null, "e": 26568, "s": 26540, "text": "\n07 Feb, 2022" }, { "code": null, "e": 26745, "s": 26568, "text": "Prerequisite: Delete all the even nodes of a Circular Linked ListGiven a circular singly linked list containing N nodes, the task is to delete all the odd nodes fr...
Java Program to Convert Celsius into Fahrenheit - GeeksforGeeks	24 Nov, 2020 Celsius scale is a temperature scale that is based on the freezing point of water at 0 °C and the boiling point of water at 100 °C. Fahrenheit scale is a temperature scale that has a freezing point of water at 32 °F and the boiling point of water at 212 °F. Examples: Input : 0 Output: 32 Input :-40 Output:...	[ { "code": null, "e": 23582, "s": 23554, "text": "\n24 Nov, 2020" }, { "code": null, "e": 23840, "s": 23582, "text": "Celsius scale is a temperature scale that is based on the freezing point of water at 0 °C and the boiling point of water at 100 °C. Fahrenheit scale is a temperatu...
How to get the list of font family (or Name of Fonts) in Matplotlib?	o get the list of font family in Matplotlib, we can take the following steps − Iterate fonts manager ttflist and print the names. Iterate fonts manager afmlist and print the names. import matplotlib.font_manager as fm for f in fm.fontManager.ttflist: print(f.name) for f in fm.fontManager.afmlist: print(f.name) ST...	[ { "code": null, "e": 1141, "s": 1062, "text": "o get the list of font family in Matplotlib, we can take the following steps −" }, { "code": null, "e": 1192, "s": 1141, "text": "Iterate fonts manager ttflist and print the names." }, { "code": null, "e": 1243, "s": ...
Can we add a column to a table from another table in MySQL?	Yes, we can add a column to a table from another table. Let us first create two tables. The query to create a table is as follows − <FirstTable> mysql> create table FirstTable -> ( -> UserId int, -> UserName varchar(20) -> ); Query OK, 0 rows affected (1.48 sec) Now create the second table. The query to cr...	[ { "code": null, "e": 1194, "s": 1062, "text": "Yes, we can add a column to a table from another table. Let us first create two tables. The query to create a table is as follows −" }, { "code": null, "e": 1207, "s": 1194, "text": "<FirstTable>" }, { "code": null, "e": ...
Firebase - Queries	Firebase offers various ways of ordering data. In this chapter, we will show simple query examples. We will use the same data from our previous chapters. To order data by name, we can use the following code. Let us consider the following example. var playersRef = firebase.database().ref("players/"); playersRef.orderBy...	[ { "code": null, "e": 2320, "s": 2166, "text": "Firebase offers various ways of ordering data. In this chapter, we will show simple query examples. We will use the same data from our previous chapters." }, { "code": null, "e": 2374, "s": 2320, "text": "To order data by name, we ca...
What is unsigned Right Shift Operator (>>>) in JavaScript?	This operator is just like the >>operator, except that the bits shifted in on the left are always zero i.e. xeroes are filled in from the left. You can try to run the following code to learn how to work with unsigned right shift operator − <html> <body> <script> var a =-14; var b =2; // Shift...	[ { "code": null, "e": 1206, "s": 1062, "text": "This operator is just like the >>operator, except that the bits shifted in on the left are always zero i.e. xeroes are filled in from the left." }, { "code": null, "e": 1302, "s": 1206, "text": "You can try to run the following code ...
Merge Intervals in Python	Suppose we have a collection of intervals, we have to merge all overlapping intervals. So if the intervals are like [[1,3], [2,6], [8,10], [15,18]], then the intervals after merging will be [[1,6],[8,10],[15,18]]. This is because there were two intervals those are overlapping, the intervals are [1,3] and [2,6], these a...	[ { "code": null, "e": 1401, "s": 1062, "text": "Suppose we have a collection of intervals, we have to merge all overlapping intervals. So if the intervals are like [[1,3], [2,6], [8,10], [15,18]], then the intervals after merging will be [[1,6],[8,10],[15,18]]. This is because there were two interval...
Apache Spark - Quick Guide	Industries are using Hadoop extensively to analyze their data sets. The reason is that Hadoop framework is based on a simple programming model (MapReduce) and it enables a computing solution that is scalable, flexible, fault-tolerant and cost effective. Here, the main concern is to maintain speed in processing large da...	[ { "code": null, "e": 2176, "s": 1771, "text": "Industries are using Hadoop extensively to analyze their data sets. The reason is that Hadoop framework is based on a simple programming model (MapReduce) and it enables a computing solution that is scalable, flexible, fault-tolerant and cost effective....
Neo4j CQL - Creating Nodes	As discussed, a node is a data/record in a graph database. You can create a node in Neo4j using the CREATE clause. This chapter teaches you how to − Create a single node Create multiple nodes Create a node with a label Create a node with multiple labels Create a node with properties Returning the created node You can c...	[ { "code": null, "e": 2488, "s": 2339, "text": "As discussed, a node is a data/record in a graph database. You can create a node in Neo4j using the CREATE clause. This chapter teaches you how to −" }, { "code": null, "e": 2509, "s": 2488, "text": "Create a single node" }, { ...
find command in Linux with examples - GeeksforGeeks	24 Nov, 2021 The find command in UNIX is a command line utility for walking a file hierarchy. It can be used to find files and directories and perform subsequent operations on them. It supports searching by file, folder, name, creation date, modification date, owner and permissions. By using the ‘-exec’ other UNIX comm...	[ { "code": null, "e": 24460, "s": 24432, "text": "\n24 Nov, 2021" }, { "code": null, "e": 24815, "s": 24460, "text": "The find command in UNIX is a command line utility for walking a file hierarchy. It can be used to find files and directories and perform subsequent operations on ...
JCL - DD Statement	Datasets are mainframe files with records organised in a specific format. Datasets are stored on the Direct Access Storage Device (DASD) or Tapes of the mainframe and are basic data storage areas. If these data are required to be used/created in a batch program, then the file (i.e., dataset) physical name along with th...	[ { "code": null, "e": 2235, "s": 1864, "text": "Datasets are mainframe files with records organised in a specific format. Datasets are stored on the Direct Access Storage Device (DASD) or Tapes of the mainframe and are basic data storage areas. If these data are required to be used/created in a batch...
Entity Framework - Data Annotations	DataAnnotations is used to configure the classes which will highlight the most commonly needed configurations. DataAnnotations are also understood by a number of .NET applications, such as ASP.NET MVC which allows these applications to leverage the same annotations for client-side validations. DataAnnotation attributes...	[ { "code": null, "e": 3393, "s": 3032, "text": "DataAnnotations is used to configure the classes which will highlight the most commonly needed configurations. DataAnnotations are also understood by a number of .NET applications, such as ASP.NET MVC which allows these applications to leverage the same...
What are decorators and how are they used in JavaScript ? - GeeksforGeeks	13 Aug, 2021 Decorators are the way of wrapping one piece of code with another or apply a wrapper around a function in JavaScript. Decorators are the design pattern that allows behavior to be added to an individual object, either statically or dynamically without affecting the behavior of other objects from the same cl...	[ { "code": null, "e": 37579, "s": 37551, "text": "\n13 Aug, 2021" }, { "code": null, "e": 38201, "s": 37579, "text": "Decorators are the way of wrapping one piece of code with another or apply a wrapper around a function in JavaScript. Decorators are the design pattern that allows...
How to check if a string has at least one letter and one number in Python?	The easiest way to check this in python is to use regular expressions. In order to check if the given string has atleast one letter and one number, we use re.match(regex, string). import re print(bool(re.match('^(?=.[0-9]$)(?=.[a-zA-Z])', 'hasAlphanum123'))) print(bool(re.match('^(?=.[0-9])(?=.[a-zA-Z]$)', 'some st...	[ { "code": null, "e": 1242, "s": 1062, "text": "The easiest way to check this in python is to use regular expressions. In order to check if the given string has atleast one letter and one number, we use re.match(regex, string)." }, { "code": null, "e": 1391, "s": 1242, "text": "im...
OOP in Python \| Set 3 (Inheritance, examples of object, issubclass and super) - GeeksforGeeks	10 Feb, 2020 We have discussed following topics on Object Oriented Programming in Python Object Oriented Programming in Python \| set-1 Object Oriented Programming in Python \| Set 2 (Data Hiding and Object Printing) In this article, Inheritance is introduced. One of the major advantages of Object Oriented Programming is...	[ { "code": null, "e": 23909, "s": 23881, "text": "\n10 Feb, 2020" }, { "code": null, "e": 23985, "s": 23909, "text": "We have discussed following topics on Object Oriented Programming in Python" }, { "code": null, "e": 24031, "s": 23985, "text": "Object Oriente...
Recursion - GeeksforGeeks	01 Jun, 2021 Recursion : The process in which a function calls itself directly or indirectly is called recursion and the corresponding function is called as recursive function.... Read More Fun(2) = 2 * Fun(3) and Fun(3) = 2 * Fun(4) ....(i) Fun(4) = 4 ......(ii) From equation (i) and (ii), Fun(2) = 2 * 2 * Fun(4) Fun(...	[ { "code": null, "e": 27530, "s": 27502, "text": "\n01 Jun, 2021" }, { "code": null, "e": 27707, "s": 27530, "text": "Recursion : The process in which a function calls itself directly or indirectly is called recursion and the corresponding function is called as recursive function....
How to generate random strings with upper case letters and digits in Python?	You can use random.choice(list_of_choices) to get a random character. Then loop over this and get a list and finally join this list to get a string. The list of choices here is Upper case letters and digits. For example: import string import random def get_random_string(length): random_list = [] for i in xrange...	[ { "code": null, "e": 1283, "s": 1062, "text": "You can use random.choice(list_of_choices) to get a random character. Then loop over this and get a list and finally join this list to get a string. The list of choices here is Upper case letters and digits. For example:" }, { "code": null, ...
The New Line - Java \| Practice \| GeeksforGeeks	You are familiar with producing output using JAVA In this task, you'll be required to write three messages in three separate lines. Write Geeks for Geeks. But wait a minute!! You need to write each word of it in a separate line. In the function printIndividualLine(), output each word of Geeks for Geeks in a separate li...	[ { "code": null, "e": 599, "s": 226, "text": "You are familiar with producing output using JAVA In this task, you'll be required to write three messages in three separate lines. Write Geeks for Geeks. But wait a minute!! You need to write each word of it in a separate line.\nIn the function printIndi...