Question

Define a class to accept a number from user and check if it is an EvenPal number or not. (The number is said to be EvenPal number when number is palindrome number (a number is palindrome if it is equal to its reverse) and sum of its digits is an even number.)

Example: 121 - is a palindrome number

Sum of the digits - 1 + 2 + 1 = 4 which is an even number

Answer 1

import java.util.*;
class EvenPal
{
   public static void main(String arg[])
   {
     Scanner sc=new Scanner(System.in);
     System.out.print("Enter a positive number:");
     int num=Math.abs(sc.nextlnt()); 
     int rev=0,sum=0, temp=num;
     while(temp>0)
     {
       int r=temp%10;
       temp=temp/10;
       rev=rev*10+r; 
       sum+=r; 
     }
      if(rev==num&&sum%2==0
      System.out.println("It  is  an  EvenPal  
      number"+num);
      else
      System.out.println("It  is  not  an  EvenPal  
      number");
     }
}

Output:

Enter a positive number: 121

It is an EvenPal number 121

Enter a positive number: 123

It is not an EvenPal number