Perfect Number Program in Java Using While Loop

import java.util.Scanner;

class Perfect
{
    public static void main(String arg[])    
    {
        long n,sum=0;
                     Scanner sc=new Scanner(System.in);            
        System.out.println("Enter a number");
                   n=sc.nextLong();
        int i=1;
        while(i<=n/2)
        {
           if(n%i==0)
           {
        sum+=i;
           }
          i++;
        }
    if(sum==n)
    {
    System.out.println(n+" is a perfect number");
               } 
    else
    System.out.println(n+" is not a  perfect number"); 
    }
}

import java.io.*;
public class PerfectNumber {
    public static void main(String[] args) {
        int number = 1;

        while (number <= 10000) {
            int sum = 0;

            // Find all the factors of the current number and add them up
            for (int i = 1; i < number; i++) {
                if (number % i == 0) {
                    sum += i;
                }
            }

            // If the sum of the factors equals the number, it's a perfect number
            if (sum == number) {
                System.out.println(number + " is a perfect number");
            }

            number++;
        }
    }
}