Java Program to Compute Reverse Number

Java Program to Compute Reverse Number using for loop

This java program is used to compute the reverse number for the given number as user input and uses for loop here.

import java.util.Scanner;	

public class Reverse {

	public static void main(String args[]) {
	  Scanner in = new Scanner(System.in); 
	  System.out.println("Reverse Number");
	  System.out.println("-----------------------");
	  System.out.print("Enter Number: ");
	  int number = in.nextInt();
	  int remainder, reverse=0;
	  for (int temp=number; temp!=0; temp=temp/10){
		  remainder = temp % 10;
		  reverse = (reverse*10)+remainder;
	  }
	  System.out.println("Reverse of Number '"+number+"'': "+reverse);;
	}
 } 

D:\Java_Programs>javac Reverse.java
D:\Java_Programs>java Reverse 
Reverse Number
-----------------------
Enter Number: 546
Reverse of Number '546'': 645

Java Program to Compute Reverse Number using while loop

This java program is used to compute the reverse number for the given number as user input and uses while loop.

import java.util.Scanner;	

public class Reverse {

	public static void main(String args[]) {
	  Scanner in = new Scanner(System.in); 
	  System.out.println("Reverse Number");
	  System.out.println("-----------------------");
	  System.out.print("Enter Number: ");
	  int number = in.nextInt();
	  int remainder, temp, reverse=0;
	  temp = number;
	  while (temp!=0){
		  remainder = temp % 10;
		  reverse = (reverse*10)+remainder;
		  temp = temp / 10;
	  }
	  System.out.println("Reverse of Number '"+number+"'': "+reverse);;
	}
 }  

D:\Java_Programs>javac Reverse.java
D:\Java_Programs>java Reverse 
Reverse Number
-----------------------
Enter Number: 478
Reverse of Number '478'': 874

Java Program to Compute Reverse Number using do while loop

This java program is used to compute the reverse number for the given number as user input and uses do while loop.

import java.util.Scanner;	

public class Reverse {

	public static void main(String args[]) {
	  Scanner in = new Scanner(System.in); 
	  System.out.println("Reverse Number");
	  System.out.println("-----------------------");
	  System.out.print("Enter Number: ");
	  int number = in.nextInt();
	  int remainder, temp, reverse=0;
	  temp = number;
	  do{
		  remainder = temp % 10;
		  reverse = (reverse*10)+remainder;
		  temp = temp / 10;
	  }while (temp!=0);
	  System.out.println("Reverse of Number '"+number+"'': "+reverse);;
	}
 } 

D:\Java_Programs>javac Reverse.java
D:\Java_Programs>java Reverse 
Reverse Number
-----------------------
Enter Number: 153
Reverse of Number '153'': 351