Java Program to sort array using bubble sort package com.instaceofjava;  public class BubbleSortExample{    int[] array={4,2,5,6,9,1};   int n = array.length; int k;   for (int m... read more ?

Java.util.concurrent.atomic package provides very useful classes that support lock free and thread safe programming. The main use of this class is an int value that may be updated... read more ?

In Java String and all wrapper classes are immutable classes. So how to create custom immutable class in java? Lets see how to make a class object immutable.... read more ?

1. Java Program to find sum of digits without using recursion. package com.instaceofjava; import java.util.Scanner;   public class SumOfDigits {   public static void main(String[] args) {  ... read more ?

1. Java Interview Program to Swap two numbers without using third variable in java (adsbygoogle = window.adsbygoogle || []).push({}); package com.instaceofjava;   public class SwapTwoNumbers {   public... read more ?

Hierarchy of HashSet class:    public class HashSet<E>         extends AbstractSet<E>            implements Set<E>, Cloneable, java.io.Serializable (adsbygoogle = window.adsbygoogle || []).push({}); Key points: HashSet is... read more ?

1. Java Interview Program to Reverse words in a string package com.instaceofjava;   public class ReverseString {   public static void main(String[] args) {   String strng= "Instance... read more ?