Palindrome program in java

import java.util.*;
class Palindrome
{
    public static void main(String args[])
    {
        Scanner acn = new Scanner(System.in);
        int ch=0;
        while(true)
        {
            System.out.print("Enter A Five Digit Number : ");
            int no=acn.nextInt();
            String sno=String.valueOf(no);
            if(sno.length()<5)
            {
                System.out.print("Length Is Less Than 5 Digit. Continue?(0)Yes/(1)No");
                ch=acn.nextInt();
                if(ch==1)
                    break;
            }
            else
            {
                boolean flag=true;
                int i=0;
                int len=sno.length();
                for(i=0;i<sno.length()/2;i++)
                {
                    if(sno.charAt(i)!=sno.charAt(len-1))
                        flag=false;
                    len--;
                }
                if(flag)
                    System.out.println("Number Is Palindrome");
                else
                    System.out.println("Number Is Not Palindrome");
                System.out.print("Continue?(0)Yes/(1)No");
                ch=acn.nextInt();
                if(ch==1)
                    break;
            }
        }
    }