Wednesday, August 5, 2020

Write a program to input a number and Swap the first and last digit of this number?(2784===4782)

80)  Write a program to input a number and Swap the first and last digit of this number?(2784===4782)


import java.util.*;
public class Swap_first_last_digit
{
    public static void main(String args[ ])
   {
           Scanner sc = new Scanner (System.in);
           System.out.println("Enter a number");
           int a = sc.nextInt();
           int k = a;
           int c = 0;
           while(k>0)
           {
               k=k/10;
               c++;
           }
           int m = (int)Math.pow(10,c-1);
           int n = a%m;
           int t = a/m;
           int r = n%10;
           n=n/10;
           n=(n*10)+t;
           n=(r*m)+n;
           System.out.println("Number after SWAPING First and Last Digit = "+n);   
    }
}

Output : 




No comments:

Post a Comment

if you have any doubts, Please let me know.
Your Truly
Shashank Porwal

 jhvghvgk ;nkjn ,nkjhj