Question

wap to accept and check wheather it a palindrome or not by using method void palin(int)

Answer 1

$\texttt{\textsf{\large{\underline{Solution}:}}}$

The given co‎de is written in Java.

import java.util.*;

public class CheckPalindrome{

   void palin(int a){

       int b=a,s=0;

       for(;b!=0;b/=10)

           s=s*10+b%10;

       if(s==a)

           System.out.println(a+" is Palindrome number.");

       else

           System.out.println(a+" is not a Palindrome number.");

   }

   public static void main(String s[]){

       Scanner sc=new Scanner(System.in);

       CheckPalindrome obj=new CheckPalindrome();

       System.out.print("Enter a number: ");

       int a=sc.nextInt();

       obj.palin(a);

   }

}

Here, the palin() method checks whether a number is palindrome or not. This function is called in main() method after taking the number as input.

Note: You can also write this -

System.out.print("Enter a number: ");

(new CheckPalindrome()).palin(sc.nextInt());

A palindrome number is a number which remains unchanged when read from backward side. Example: 121, 1221, 12321 etc..