Category: Java

Reversing a number means swapping the digits. For instance, if the input is 98634, the output will be 43689, as shown below. In this article, we will learn to reverse...

A palindrome is a word, phrase, number, or sequence of characters that reads the same backward as it does forward. In other words, it remains unchanged when its characters are...

You will learn how to create a Java program that adds two integers in this tutorial. This is a very simple Java program that asks the user to enter two...

The sum of all integers from 1 to the given number is known as the factorial of that number. Make sure you are comfortable with Java loops before continuing. Example:...

In this article, we are going to discuss “How to reverse an array in Java”. You are given an array of integers. Your task is to output the array in...

In Java programming, an interface is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types. Interfaces cannot contain...

Constructor is invoked when an object of the class is generated and is quite similar to a method. In most cases, a constructor is used to execute the initial blocks...

Methods can be accessed in two ways: by value and by reference. Calling a method by value means passing a value as a parameter. Calling a method by reference means...

In this article, We shall learn what a Java Armstrong Number is. The method for determining if a number is Armstrong or not will be shown, along with its code....

Java being one of the most popular languages is sometimes quite intimidating. Most of you must have heard or even used both core java and advanced java concepts at some...

Java program examples are the most effective way to practice the Java programming language. This page contains basic Java practice program examples. It is suggested that you use the examples...

Introduction We all have been using HashSet, LinkedHashSet, and TreeSet in Java. But do you know what are the differences between them and how they all are similar too in...

Linked lists are fundamental data structures in computer science, providing a dynamic and flexible way to store and manage a collection of elements. Unlike arrays, linked lists do not require...

Introduction ConcurrentLinkedQueue class in java extends AbstractQueue interface and implements Queue interface. This class was added in Java 5. ConcurrentLinkedQueue class is a member of the collections framework in java....

Class Declaration [TABS_R id=5250] Here, E is the data type of the elements which will be stored in the queue. ConcurrentLinkedQueue class in java extends AbstractQueue interface and implements Queue...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of LinkedList might be...

This article taught you the most interesting and efficient problem of the linked list “Rearrange linked list in alternate last and first”. We will see the approach, algorithms, dry run,...

In Java, the LinkedHashMap class offers a unique advantage over other map implementations by maintaining the insertion order of its elements. This means that elements are stored in the order...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...

Introduction The linked list is one of the most crucial concepts and data structures to grasp while preparing for interviews. In a coding interview, having a thorough understanding of Linked...

Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...

Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...

Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...

In the world of Java programming, the LinkedList data structure holds a significant place due to its dynamic nature and flexible operations. One of the key methods enhancing its functionality...

Introduction The linked list is one of the most important data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a huge plus...