Java Programs

How to open notepad in java Program

import java.util.*; import java.io.*; class Notepad { public static void main(String[] args) { Runtime rs = Runtime.getRuntime(); try { rs.exec(“notepad”); } catch (IOException e) { System.out.println(e); } } } Program Description: This…

How to get own IP Address in java Program

import java.net.InetAddress; class IPAddress { public static void main(String args[]) throws Exception { System.out.println(InetAddress.getLocalHost()); } } Program Explanation: This Java program illustrates how to get the local IP address…

How perform garbage collection in java Program

import java.util.*; class GarbageCollection { public static void main(String s[]) throws Exception { Runtime rs = Runtime.getRuntime(); System.out.println(“Free memory in JVM before Garbage Collection = “+rs.freeMemory()); rs.gc(); System.out.println(“Free…

How to Date format in java Program

import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class SimpleDateFormatExample2 { public static void main(String[] args) { Date date…

Print reverse string in java Program

import java.util.*; class ReverseString { public static void main(String args[]) { String original, reverse = “”; Scanner in = new Scanner(System.in); System.out.println(“Enter a string to reverse”);…

Find All substring of string in java Program

import java.util.Scanner; class SubstringsOfAString { public static void main(String args[]) { String string, sub; int i, c, length; Scanner in = new Scanner(System.in); System.out.println(“Enter a string to print…

Print Floyd’s Triangle in java Program

import java.util.Scanner; class FloydTriangle { public static void main(String args[]) { int n, num = 1, c, d; Scanner in = new Scanner(System.in); System.out.println(“Enter the number of…

Print prime no Program in java

import java.util.*; class PrimeNumbers { public static void main(String args[]) { int n, status = 1, num = 3; Scanner in = new Scanner(System.in); System.out.println(“Enter the number…

Print Multiplication table Program in java

import java.util.Scanner; //For Any Number import java.util.Scanner; class Tables { public static void main(String args[]) { int a, b, c, d; System.out.println(“Enter range of numbers to print their…

While loop using break and continue Program in java

import java.util.Scanner; class BreakContinueWhileLoop { public static void main(String[] args) { int n; Scanner input = new Scanner(System.in); while (true) { System.out.println(“Input an integer”); n = input.nextInt(); if…

While loop Program in java

import java.util.Scanner; class WhileLoop { public static void main(String[] args) { int n; Scanner input = new Scanner(System.in); System.out.println(“Input an integer”); while ((n = input.nextInt())…

If Else clause in java- Program 2

// If else in Java code import java.util.Scanner; class IfElse { public static void main(String[] args) { int marksObtained, passingMarks; passingMarks = 40; Scanner input…