Disarium Number

Write a program to check it is Disarium number (unhappy number) or not .

import java.util.Scanner;

class Disarium

{

    public static void main()

    {

        System.out.println("Enter a number");

        Scanner in = new Scanner(System.in);

        int x = in.nextInt();

        int num=x,length=0,disarium=0,y=x;

        for(;x>0;length++)

            x=x/10;

        for(int i=length;y>0;i--)

        {

            disarium =  (int)Math.pow((y%10),i) + disarium;

            y=y/10;

        }

        if(num==disarium)

        System.out.println("It is disarium number");

        else

        System.out.println("It is not disarium number");

    }

}

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