Java Programme to check Perfect Number

import java.util.;
import java.io.;

public class Main {
public static void main(String args[]) throws IOException {

  //write your code here
  Scanner sc=new Scanner(System.in);
    int num=sc.nextInt();
    int sum=0;
    for(int j=1;j<=num/2;j++)
    {
      if(num%j==0)
        sum=sum+j;
    }
    if(sum==num)
    {
      System.out.println(true);
    }
    else
    {
      System.out.println(false);
    }
  }
}