Question

Write a program to create the reverse of a number and print it.

Answer 1

import java.util.*;
class clDigits
{
    void main()
    {
        Scanner sc = new Scanner(System.in);
        int N, revn = 0, cn = 0, d = 0;
        System.out.print("Enter a number : ");
        N = sc.nextInt();
        cn = N;
        while(cn > 0)
        {
            d = cn % 10;
            revn = revn * 10 + d;
            cn = cn / 10;
        }
        System.out.print(" Reverse of : " + N + " is : " + revn);
    }
}

Output:

Enter a number : 357

Reverse of: 357 is: 753