Introduction Creating a HashMap in Java Accessing Elements in HashMap Iterating Through a HashMap Key Features of HashMap In Java, a `HashMap` is used to store data in key-value pairs. It belongs to the `java.util` package and provides fast access to elements using keys. In this article, we will learn how to create, insert, …
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I explored how to perform basic file handling in Java using FileReader and FileWriter. This article explains both reading and writing operations step-by-step with code examples and output. -Introduction – Writing to a File using FileWriter – Reading from a File using FileReader – Conclusion – Note File handling is an essential part …
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Bubble Sort Quick Sort Merge Sort Sorting Sorting is the process of arranging elements in a particular order — either ascending or descending. It is one of the most common operations performed on arrays in programming. Sorting helps in: Searching faster Understanding data patterns Improving performance of other algorithms Bubble Sort in Java Bubble Sort …
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Recursive Method in Java Recursive Method in Java I have implemented the Binary Search algorithm in both iterative and recursive ways. This post explains the concept of Binary Search with easy-to-understand steps and working Java code examples. The goal is to help beginners learn how Binary Search works and how to implement it practically in …
Implementing Binary Search in Java with Step-by-Step Code. Read More »
String reversal is a fundamental problem frequently asked in coding interviews. we will explore multiple approaches to reverse a string in Java, with step-by-step explanations and practical code examples. 1. Using StringBuilder Java provides StringBuilder, which has a built-in reverse() method to easily reverse a string. public class ReverseStringExample { public static void …
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