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Introduction to Complex Objects and Composition - GeeksforGeeks	29 Jul, 2021 An object is a basic unit of Object-Oriented Programming and represents the real-life entities. Complex objects are the objects that are built from smaller or a collection of objects. For example, a mobile phone is made up of various objects like a camera, battery, screen, sensors, etc. In this article, we...	[ { "code": null, "e": 25343, "s": 25315, "text": "\n29 Jul, 2021" }, { "code": null, "e": 26168, "s": 25343, "text": "An object is a basic unit of Object-Oriented Programming and represents the real-life entities. Complex objects are the objects that are built from smaller or a co...
Python \| Get first index values in tuple of strings	01 May, 2019 Yet another peculiar problem which might not be common, but can occur in python programming while playing with tuples. Since tuples are immutable, they are difficult to manipulate and hence knowledge of possible variation solutions always helps. This articles solves problem of extracting only the first ind...	[ { "code": null, "e": 28, "s": 0, "text": "\n01 May, 2019" }, { "code": null, "e": 435, "s": 28, "text": "Yet another peculiar problem which might not be common, but can occur in python programming while playing with tuples. Since tuples are immutable, they are difficult to manipu...
jQuery \| append() Method	19 Feb, 2019 This append() Method in jQuery is used to insert some content at the end of the selected elements. Syntax: $(selector).append( content, function(index, html) ) Parameters: This method accepts two parameters as mentioned above and described below: content: It is required parameter and used to specify the co...	[ { "code": null, "e": 28, "s": 0, "text": "\n19 Feb, 2019" }, { "code": null, "e": 127, "s": 28, "text": "This append() Method in jQuery is used to insert some content at the end of the selected elements." }, { "code": null, "e": 135, "s": 127, "text": "Syntax:...
How to capture multiple matches in the same line in Java regex	import java.util.regex.*; class PatternMatcher { public static void main(String args[]) { int count = 0; // String to be scanned to find the pattern. String content = "aaa bb aaa"; String string = "aaa"; // Create a Pattern object Pattern p = Pattern.compile(string); // ge...	[ { "code": null, "e": 1741, "s": 1187, "text": "import java.util.regex.*;\nclass PatternMatcher {\n public static void main(String args[]) {\n int count = 0;\n // String to be scanned to find the pattern.\n String content = \"aaa bb aaa\";\n String string = \"aaa\";\n\n // ...
Set Matplotlib colorbar size to match graph	08 Sep, 2021 Prerequisites: Matplotlib Colorbar size that match graph or image is required to get good visualize effect. This can be achieved using any one of following approaches. Fraction parameter in colorbar() is used to set the size of colorbar. Using this we can match colorbar size to graph as: If vertical colorb...	[ { "code": null, "e": 28, "s": 0, "text": "\n08 Sep, 2021" }, { "code": null, "e": 54, "s": 28, "text": "Prerequisites: Matplotlib" }, { "code": null, "e": 196, "s": 54, "text": "Colorbar size that match graph or image is required to get good visualize effect. ...
Python – Difference between sorted() and sort()	03 Jun, 2022 Sorting means rearranging a given sequence of elements according to a comparison operator on the elements. The comparison operator is used to decide the new order of the element in the respective data structure.For example: The below list of characters is sorted in increasing order of their ASCII values. T...	[ { "code": null, "e": 52, "s": 24, "text": "\n03 Jun, 2022" }, { "code": null, "e": 471, "s": 52, "text": "Sorting means rearranging a given sequence of elements according to a comparison operator on the elements. The comparison operator is used to decide the new order of the elem...
Memory profiling in Python using memory_profiler	01 Aug, 2020 If you use Python a lot then you probably know that many people claim that Python takes up more time to execute. Well, you probably have seen approaches like the total time spent to execute a part of code or something like that but sometimes you need something more than that. What about RAM usage? Nobody r...	[ { "code": null, "e": 28, "s": 0, "text": "\n01 Aug, 2020" }, { "code": null, "e": 494, "s": 28, "text": "If you use Python a lot then you probably know that many people claim that Python takes up more time to execute. Well, you probably have seen approaches like the total time sp...
Twitter Sentiment Analysis WebApp Using Flask	13 Jun, 2022 This is a web app made using Python and Flask Framework. It has a registration system and a dashboard. Users can enter keywords to retrieve live Twitter text based on the keyword, and analyze it for customer feelings and sentiments. This data can be visualized in a graph. This project, in particular, mines...	[ { "code": null, "e": 54, "s": 26, "text": "\n13 Jun, 2022" }, { "code": null, "e": 511, "s": 54, "text": "This is a web app made using Python and Flask Framework. It has a registration system and a dashboard. Users can enter keywords to retrieve live Twitter text based on the key...
G-Fact 19 (Logical and Bitwise Not Operators on Boolean)	01 Jun, 2022 Most of the languages including C, C++, Java and Python provide the boolean type that can be either set to False or True.Consider below programs that use Logical Not (or !) operator on boolean. C++ Python C# Javascript // A C++ program that uses Logical Not or ! on boolean#include <iostream>using namespa...	[ { "code": null, "e": 52, "s": 24, "text": "\n01 Jun, 2022" }, { "code": null, "e": 248, "s": 52, "text": "Most of the languages including C, C++, Java and Python provide the boolean type that can be either set to False or True.Consider below programs that use Logical Not (or !) o...
Python \| Perform Sentence Segmentation Using Spacy	05 Sep, 2020 The process of deciding from where the sentences actually start or end in NLP or we can simply say that here we are dividing a paragraph based on sentences. This process is known as Sentence Segmentation. In Python, we implement this part of NLP using the spacy library. Spacy is used for Natural Language P...	[ { "code": null, "e": 28, "s": 0, "text": "\n05 Sep, 2020" }, { "code": null, "e": 299, "s": 28, "text": "The process of deciding from where the sentences actually start or end in NLP or we can simply say that here we are dividing a paragraph based on sentences. This process is kn...
Ruby \| Types of Variables	30 Jul, 2018 There are different types of variables in Ruby: Local variables Instance variables Class variables Global variables Each variable in Ruby is declared by using a special character at the start of the variable name which is mentioned in the following table: Local Variables: A local variable name always start...	[ { "code": null, "e": 52, "s": 24, "text": "\n30 Jul, 2018" }, { "code": null, "e": 100, "s": 52, "text": "There are different types of variables in Ruby:" }, { "code": null, "e": 116, "s": 100, "text": "Local variables" }, { "code": null, "e": 135,...
Reader ready() method in Java with Examples	07 Feb, 2019 The ready() method of Reader Class in Java is used to check whether this Reader is ready to be read or not. It returns a boolean which states if the reader is ready. Syntax: public void ready() Parameters: This method does not accepts any parameters Return Value: This method returns a boolean value which t...	[ { "code": null, "e": 28, "s": 0, "text": "\n07 Feb, 2019" }, { "code": null, "e": 194, "s": 28, "text": "The ready() method of Reader Class in Java is used to check whether this Reader is ready to be read or not. It returns a boolean which states if the reader is ready." }, {...
Palindrome String \| Practice \| GeeksforGeeks	Given a string S, check if it is palindrome or not. Example 1: Input: S = "abba" Output: 1 Explanation: S is a palindrome Example 2: Input: S = "abc" Output: 0 Explanation: S is not a palindrome Your Task: You don't need to read input or print anything. Complete the function isPlaindrome()which accepts string S and...	[ { "code": null, "e": 290, "s": 238, "text": "Given a string S, check if it is palindrome or not." }, { "code": null, "e": 301, "s": 290, "text": "Example 1:" }, { "code": null, "e": 360, "s": 301, "text": "Input: S = \"abba\"\nOutput: 1\nExplanation: S is a pa...
A Pancake Sorting Problem - GeeksforGeeks	17 Jan, 2022 We have discussed Pancake Sorting in the previous post. Following is a problem based on Pancake Sorting. Given an unsorted array, sort the given array. You are allowed to do only following operation on array. flip(arr, i): Reverse array from 0 to i Imagine a hypothetical machine where flip(i) always takes...	[ { "code": null, "e": 23253, "s": 23225, "text": "\n17 Jan, 2022" }, { "code": null, "e": 23462, "s": 23253, "text": "We have discussed Pancake Sorting in the previous post. Following is a problem based on Pancake Sorting. Given an unsorted array, sort the given array. You are all...
numpy.inner()	This function returns the inner product of vectors for 1-D arrays. For higher dimensions, it returns the sum product over the last axes. import numpy as np print np.inner(np.array([1,2,3]),np.array([0,1,0])) # Equates to 10+21+3*0 It will produce the following output − 2 # Multi-dimensional array example import n...	[ { "code": null, "e": 2380, "s": 2243, "text": "This function returns the inner product of vectors for 1-D arrays. For higher dimensions, it returns the sum product over the last axes." }, { "code": null, "e": 2478, "s": 2380, "text": "import numpy as np \nprint np.inner(np.array(...
Why Rectified Linear Unit (ReLU) in Deep Learning and the best practice to use it with TensorFlow \| by B. Chen \| Towards Data Science	The activation functions are at the very core of Deep Learning. They determine the output of a model, its accuracy, and computational efficiency. In some cases, activation functions have a major effect on the model’s ability to converge and the convergence speed. In this article, you’ll learn why ReLU is used in Deep L...	[ { "code": null, "e": 436, "s": 172, "text": "The activation functions are at the very core of Deep Learning. They determine the output of a model, its accuracy, and computational efficiency. In some cases, activation functions have a major effect on the model’s ability to converge and the convergenc...
CUDA - Quick Guide	CUDA − Compute Unified Device Architecture. It is an extension of C programming, an API model for parallel computing created by Nvidia. Programs written using CUDA harness the power of GPU. Thus, increasing the computing performance. Gordon Moore of Intel once famously stated a rule, which said that every passing year,...	[ { "code": null, "e": 2126, "s": 1892, "text": "CUDA − Compute Unified Device Architecture. It is an extension of C programming, an API model for parallel computing created by Nvidia. Programs written using CUDA harness the power of GPU. Thus, increasing the computing performance." }, { "code...
Program to count substrings with all 1s in binary string in Python	Suppose we have a binary string s. We have to find the number of substrings that contain only "1"s. If the answer is too large, mod the result by 10^9+7. So, if the input is like s = "100111", then the output will be 7, because the substrings containing only "1"s are ["1", "1", "1", "1", "11", "11" and "111"] To solve ...	[ { "code": null, "e": 1216, "s": 1062, "text": "Suppose we have a binary string s. We have to find the number of substrings that contain only \"1\"s. If the answer is too large, mod the result by 10^9+7." }, { "code": null, "e": 1373, "s": 1216, "text": "So, if the input is like s...
Dynamic program vs integer program: which one is better for the knapsack problem? \| by Wei Xia \| Towards Data Science	The field of optimization encompasses many different fields of models and algorithms. You can classify the field base on many different criteria: Linear vs nonlinear, convex vs non-convex, continuous vs discrete, etc. Often times, one problem could be solved with multiple different approaches, and this is where differe...	[ { "code": null, "e": 760, "s": 172, "text": "The field of optimization encompasses many different fields of models and algorithms. You can classify the field base on many different criteria: Linear vs nonlinear, convex vs non-convex, continuous vs discrete, etc. Often times, one problem could be sol...
Mockito - Spying	Mockito provides option to create spy on real objects. When spy is called, then actual method of real object is called. //create a spy on actual object calcService = spy(calculator); //perform operation on real object //test the add functionality Assert.assertEquals(mathApplication.add(20.0, 10.0),30.0,0); Step 1 − C...	[ { "code": null, "e": 2100, "s": 1980, "text": "Mockito provides option to create spy on real objects. When spy is called, then actual method of real object is called." }, { "code": null, "e": 2290, "s": 2100, "text": "//create a spy on actual object\ncalcService = spy(calculator)...
Dungeon Game in C++	Suppose there is a story like the demons had captured the princess whose name is P and imprisoned her in the bottom-right corner of a dungeon. The dungeon consists of M row, N column grid-like rooms. Our valiant knight named K was initially positioned in the top-left room and must fight his way through the dungeon to r...	[ { "code": null, "e": 1402, "s": 1062, "text": "Suppose there is a story like the demons had captured the princess whose name is P and imprisoned her in the bottom-right corner of a dungeon. The dungeon consists of M row, N column grid-like rooms. Our valiant knight named K was initially positioned i...
Data Analysis in MySQL — Operators, Joins and More in Relational Databases \| by Craig Dickson \| Towards Data Science	This is part 3 of a 3-part series taking you through the process of designing, coding, implementing and querying a relational database using MySQL, starting from zero. See part 1 (Designing a Relational Database and Creating an Entity Relationship Diagram) here, and part 2 (Coding and Implementing a Relational Database...	[ { "code": null, "e": 512, "s": 172, "text": "This is part 3 of a 3-part series taking you through the process of designing, coding, implementing and querying a relational database using MySQL, starting from zero. See part 1 (Designing a Relational Database and Creating an Entity Relationship Diagram...
Git - Quick Guide	Version Control System (VCS) is a software that helps software developers to work together and maintain a complete history of their work. Listed below are the functions of a VCS − Allows developers to work simultaneously. Does not allow overwriting each other’s changes. Maintains a history of every version. Following a...	[ { "code": null, "e": 2183, "s": 2045, "text": "Version Control System (VCS) is a software that helps software developers to work together and maintain a complete history of their work." }, { "code": null, "e": 2225, "s": 2183, "text": "Listed below are the functions of a VCS −" ...
How to resolve a NullPointerException in Java?	A NullPointerException is a runtime exception thrown by the JVM when our application code, other referenced API or the middleware encounters the following conditions Attempting to invoke an instance method of a null object. Attempting to access or modify a particular field of a null object. Attempting to obtain the len...	[ { "code": null, "e": 1228, "s": 1062, "text": "A NullPointerException is a runtime exception thrown by the JVM when our application code, other referenced API or the middleware encounters the following conditions" }, { "code": null, "e": 1286, "s": 1228, "text": "Attempting to in...
Encode an ASCII string into Base-64 Format - GeeksforGeeks	24 Sep, 2021 Base 64 is an encoding scheme that converts binary data into text format so that encoded textual data can be easily transported over network un-corrupted and without any data loss. Base64 is used commonly in a number of applications including email via MIME, and storing complex data in XML. Problem with se...	[ { "code": null, "e": 25477, "s": 25449, "text": "\n24 Sep, 2021" }, { "code": null, "e": 25959, "s": 25477, "text": "Base 64 is an encoding scheme that converts binary data into text format so that encoded textual data can be easily transported over network un-corrupted and witho...
C Program for sum of cos(x) series	We are given with the value of x and n where, x is the angle for cos and n is the number of terms in the cos(x) series. Cos(x) is a trigonometric function which is used to calculate the value of x angle. cos⁡(x)=∑k=0∞(−1)k(2k!)x2k Cos(x) = 1 – (x2 / 2!) + (x4 / 4!) – (x6 / 6!) + (x8 / 8!)...... Input-: x = 10, n = ...	[ { "code": null, "e": 1182, "s": 1062, "text": "We are given with the value of x and n where, x is the angle for cos and n is the number of terms in the cos(x) series." }, { "code": null, "e": 1266, "s": 1182, "text": "Cos(x) is a trigonometric function which is used to calculate ...
C++ Program to Find Fibonacci Numbers using Matrix Exponentiation	The Fibonacci numbers, commonly denoted Fn form a sequence, called the Fibonacci sequence, i.e; each number is the sum of the two preceding ones, starting from 0 and 1. That is − F0 = 0 and F1 = 1 And Fn = Fn-1 + Fn-2 for n > 1. Begin Take two 2 dimensional array Create a function and Perform matrix multiplicatio...	[ { "code": null, "e": 1241, "s": 1062, "text": "The Fibonacci numbers, commonly denoted Fn form a sequence, called the Fibonacci sequence, i.e; each number is the sum of the two preceding ones, starting from 0 and 1. That is −" }, { "code": null, "e": 1291, "s": 1241, "text": "F0 ...
Binary Representations in Digital Logic - GeeksforGeeks	07 Jul, 2021 Binary is a base-2 number system that uses two states 0 and 1 to represent a number. We can also call it to be a true state and a false state. A binary number is built the same way as we build the normal decimal number. For example, a decimal number 45 can be represented as 410^1+510^0 = 40+5 Now in bi...	[ { "code": null, "e": 25815, "s": 25787, "text": "\n07 Jul, 2021" }, { "code": null, "e": 26036, "s": 25815, "text": "Binary is a base-2 number system that uses two states 0 and 1 to represent a number. We can also call it to be a true state and a false state. A binary number is b...
Why do we Need Immutables in Python ?	10 Jul, 2020 When a Novice steps into the Programming world and kicks off to learn about different concepts of it and yet eventually reaching to the Data Structures and Algorithms, learning and implementing them, but one or the other way he/she tends to read once and forget about the Immutable object. Mutable and Immut...	[ { "code": null, "e": 52, "s": 24, "text": "\n10 Jul, 2020" }, { "code": null, "e": 342, "s": 52, "text": "When a Novice steps into the Programming world and kicks off to learn about different concepts of it and yet eventually reaching to the Data Structures and Algorithms, learni...
ReactJS Reactstrap Collapse Component	24 Nov, 2021 Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. The Collapse component is used as a content area that can be collapsed and expanded. We can use the following approach in ReactJS to use the Reac...	[ { "code": null, "e": 28, "s": 0, "text": "\n24 Nov, 2021" }, { "code": null, "e": 370, "s": 28, "text": "Reactstrap is a popular front-end library that is easy to use React Bootstrap 4 components. This library contains the stateless React components for Bootstrap 4. The Collapse ...
How to Fix: ‘numpy.ndarray’ object has no attribute ‘append’	28 Nov, 2021 NumPy is a library for the Python programming language, adding support for large, multi-dimensional arrays and matrices, along with a large collection of high-level mathematical functions to operate on these arrays. If you are into analytics, you might have come across this library in python. In the beginn...	[ { "code": null, "e": 28, "s": 0, "text": "\n28 Nov, 2021" }, { "code": null, "e": 630, "s": 28, "text": "NumPy is a library for the Python programming language, adding support for large, multi-dimensional arrays and matrices, along with a large collection of high-level mathematic...
Information Security \| Integrity	13 Jun, 2022 Integrity is the protection of system data from intentional or accidental unauthorized changes. The challenges of the security program are to ensure that data is maintained in the state that is expected by the users. Although the security program cannot improve the accuracy of the data that is put into the...	[ { "code": null, "e": 28, "s": 0, "text": "\n13 Jun, 2022" }, { "code": null, "e": 1224, "s": 28, "text": "Integrity is the protection of system data from intentional or accidental unauthorized changes. The challenges of the security program are to ensure that data is maintained i...
ReactJS \| Setting up Development Environment	25 Jan, 2021 To run any React application, we must have NodeJS installed on our PC. So, the very first step will be to install NodeJS. Step 1: Install NodeJS. You may visit the official download link of NodeJS to download and install the latest version of NodeJS. Once we have set up NodeJS on our PC, the next thing we...	[ { "code": null, "e": 53, "s": 25, "text": "\n25 Jan, 2021" }, { "code": null, "e": 176, "s": 53, "text": "To run any React application, we must have NodeJS installed on our PC. So, the very first step will be to install NodeJS. " }, { "code": null, "e": 402, "s": ...
JavaScript \| Object Properties	27 Mar, 2019 Object properties are defined as a simple association between name and value. All properties have a name and value is one of the attributes linked with the property, which defines the access granted to the property. Properties refer to the collection of values which are associated with the JavaScript objec...	[ { "code": null, "e": 28, "s": 0, "text": "\n27 Mar, 2019" }, { "code": null, "e": 510, "s": 28, "text": "Object properties are defined as a simple association between name and value. All properties have a name and value is one of the attributes linked with the property, which def...
Design a Parallax Webpage using HTML & CSS	13 Apr, 2021 A parallax website includes fixed images in the background that is kept in place and user can scroll down the page to see different parts of the image. In this article, we are creating a parallax webpage using HTML and CSS. We will use basic tags of HTML like div, paragraph, and heading to write our conten...	[ { "code": null, "e": 54, "s": 26, "text": "\n13 Apr, 2021" }, { "code": null, "e": 425, "s": 54, "text": "A parallax website includes fixed images in the background that is kept in place and user can scroll down the page to see different parts of the image. In this article, we ar...
How to create linear gradient text using HTML and CSS ?	11 Jun, 2020 The linear-gradient is a kind of text-styling in which the text is filled with linear-gradient color codes. These kinds of effects are generally used in dark-themed websites or apps to make the text look attractive and bold. They are almost suitable for dark themes and do not go well with the lighter theme...	[ { "code": null, "e": 28, "s": 0, "text": "\n11 Jun, 2020" }, { "code": null, "e": 338, "s": 28, "text": "The linear-gradient is a kind of text-styling in which the text is filled with linear-gradient color codes. These kinds of effects are generally used in dark-themed websites o...
Python – Extract elements from Ranges in List	02 Sep, 2020 Given a list, and a list of tuples with ranges, extract all elements in those ranges from list. Input : test_list = [4, 5, 4, 6, 7, 5, 4, 5, 6, 10], range_list = [(2, 4), (7, 8)]Output : [4, 6, 7, 5, 6]Explanation : 4, 6, 7 are elements at idx 2, 3, 4 and 5, 6 at idx 7, 8. Input : test_list = [4, 5, 4, 6, ...	[ { "code": null, "e": 28, "s": 0, "text": "\n02 Sep, 2020" }, { "code": null, "e": 124, "s": 28, "text": "Given a list, and a list of tuples with ranges, extract all elements in those ranges from list." }, { "code": null, "e": 302, "s": 124, "text": "Input : te...
VB.Net - Operators	An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations. VB.Net is rich in built-in operators and provides following types of commonly used operators − Arithmetic Operators Arithmetic Operators Comparison Operators Comparison Operators Logical/Bitwise Operators Logical/...	[ { "code": null, "e": 2636, "s": 2434, "text": "An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations. VB.Net is rich in built-in operators and provides following types of commonly used operators −" }, { "code": null, "e": 2657, "s":...
A Covid Analysis. From a country-wise analysis of... \| by Deepika Vijay \| Towards Data Science	In this article, we are going to walk through Relationships between variables such as a country’s poverty rates, life expectancy rates, stringency indices and, covid cases and deathsVaccination rates per country and their predictions up until the end of JuneHow I went about the data and the analyses (only the jupyter n...	[ { "code": null, "e": 218, "s": 172, "text": "In this article, we are going to walk through" }, { "code": null, "e": 506, "s": 218, "text": "Relationships between variables such as a country’s poverty rates, life expectancy rates, stringency indices and, covid cases and deathsVacc...
C library function - atan2()	The C library function double atan2(double y, double x) returns the arc tangent in radians of y/x based on the signs of both values to determine the correct quadrant. Following is the declaration for atan2() function. double atan2(double y, double x) x − This is the floating point value representing an x-coordinate. x ...	[ { "code": null, "e": 2174, "s": 2007, "text": "The C library function double atan2(double y, double x) returns the arc tangent in radians of y/x based on the signs of both values to determine the correct quadrant." }, { "code": null, "e": 2225, "s": 2174, "text": "Following is th...