Armstrong Program (Reverse of number) in Java

 

Reverse of number (Armstrong Program)

Reverse of number means reverse the position of all digits of any number. For example reverse of 839 is 938.

Example

import java.util.Scanner;

class Reverse

{

public static void main(String[] args)

{

int no,rev=0,r,a;

Scanner s=new Scanner(System.in);

System.out.println("Enter any number: ");

no=s.nextInt();

a=no;

while(no>0)

{

r=no%10;

rev=rev*10+r;

no=no/10;

}

System.out.println("Reverse: "+rev);

}

}

Output

Enter any number :

153

not Armstrong

Syntax to compile and run java program

Syntax

for compile -> c:/>javac Reverse.java

for run -> c:/>java Reverse

Explnation of Code

·         Scanner s=new Scanner(System.in): are used for receive input from keyboard.

·         nextInt(): method are used for get integer type value from keyboard.

·         System.out.println("....."): are used for display message on screen or console.