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In this segment of Java programming, we are going to learn and discover certain programs by which we can represent linear equations in Matrix form. To do these programs, we first have to learn about linear equations and Matrix forms, their types, and how they are solved by simple mathematical methods. We will learn how to integrate a scanner class of java.util package to take input from the user using Java build code. The array will initialize to store some variables as input for the problem matrix. Then, it will be converted into a loop by which the problem equation will ... Read More
In this article, we will learn to remove duplicate elements from a List in Java. We will be using two methods: LinkedHashSet and the Stream API. First, we'll create a list with duplicate values and use LinkedHashSet to remove them while maintaining the order. Then, we’ll use the Stream API to filter out duplicates using distinct(). By the end, you’ll see how both methods work to clean up the list while keeping the original order. List in Java The List interface in Java, part of the Collection framework, represents an ordered collection of elements that allows duplicates and provides index-based ... Read More
To change the background color after clicking the button in JavaScript, we are going to discuss two different approaches. We have to perform two simple task, that is, adding a click event and changing the background color of the document. In this article our task is to understand how to change the background color after clicking the button in JavaScript. Approaches to Change Background Color on Clicking Button Here is a list of approaches to change the background color after clicking the button in JavaScript which we will be discussing in this article with stepwise explaination and complete example codes. ... Read More
A Heap is a Tree-based data structure in which the tree is a complete binary tree. Binary heap is of two types max heap and min heap. A min-heap is a tree-like structure in which the value of the parent node should always be less than both of its left and right child and follow this property recursively for all nodes until it reaches to leaf node. According to this property, the root node of the min-heap has the smallest value. In this article, we are going to check whether an array represents a min-heap or not. Problem Description We ... Read More
It is not uncommon in SQL to analyze tables vertically or horizontally in an attempt to obtain a solution. This might include establishing a baseline for evaluating successive states, determining boolean variables, or even classifying information without requiring joins over distinct tables. In this article, we explain relevant similarities with examples. Setting Up the Database Let us set up a database with a sample table to illustrate the processes involved in the case studies, this setup will feature the insertion of dummy values to test comparisons. First of all, create a database using the CREATE DATABASE statement − CREATE DATABASE ... Read More
To declare a variable in javascript we can use var, let or const keyword. Earlier var was only way to declare variable in javascript.In ES6, let and const keywords were introduced as a better way to declare variables. Now it is advised to use let instead of var to declare a variable. In this article we will be understanding the differences between var and let in Javascript. We will be differentiating between let and var based on the features mentioned in the table: ... Read More
In this article, we will see how to get selected option values in PHP, with necessary examples. What is "option value" in PHP? Drop-down menus are created by using the and . PHP allows users to select one or more options from a list. Syntax Below is the syntax of the Option Value in PHP − Text Label-1 Text Label-2 . . . The characteristics related with the tag are − Multiple: This is used to choose multiple choices from a list. ... Read More
In this modern era, businesses mostly rely on data analytics to make decisions, simplify the operations, and accomplish their objectives. A job in data analysis offers the perfect mix of security, creativity, and development with its attractive pay, limitless learning possibilities, and opportunity to work on real-world challenges.10 Reasons to Choose Data Analyst JobsIn this article, I have highlighted ten solid reasons for choosing a career as a data analyst, whether you're looking at other options or thinking about changing careers - 1. High Demand in All SectorsEach company in the world makes its decisions mostly on data. There is a ... Read More
Operations research (OR) is a systematic method to resolve difficult decision-making issues. It uses various statistical methods, mathematical models and various computing tools. It provides insight based on data to efficiently address real-world situations and is widely used in industries such as banking, healthcare, and supply chain management.What is Operations Research?The scientific field of operations research (OR) aims to improve the decision-making and problem-solving in complex systems. It examines the procedures and increases the productivity. This all is done by using computational methods, statistical analysis, and mathematical models. It is used to increase the resources, cut the expenses, and improve the ... Read More
In C++, sorting a vector is a common task, and many problems are based on sorting. To sort a vector in descending order, we can use the std::sort() function from the STL (Standard Template Library). This function is included in the library. By default, std::sort() sorts in ascending order, but you can pass a custom comparator, such as std::greater(), to sort in descending order. Here’s a detailed overview of how sorting a vector works in C++ and what solutions we have provided in this article. ... Read More