Java Program to check the number is Perfect number or not

import java.io.*;
import java.util.*;
public class Perfect{
    Scanner scan=new Scanner(System.in);
    int num, sum=0;
    public void input()throws Exception{
        System.out.println("Enter any number: ");
        num=scan.nextInt();
    }

    public void compute(){
        System.out.println("Factors of "+num+" are: ");
        for(int i=1; i<num; i++){
            if(num%i==0){
                sum+=i;
                System.out.println(i);
            }
        }
        System.out.println("Sum of all factors: "+sum);
        if(sum==num)
            System.out.println("Number "+num+" is Perfect.");
        else
            System.out.println("Number "+num+" is not Perfect.");
    }

    public static void main(String[] args)throws Exception{
        Perfect obj=new Perfect();
        obj.input();
        obj.compute();
    }
}