Perfect number program in java

Java code to check given number is perfect number or not

import java.io.*;



class Test {

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

int n,i=1,sum=0;

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

BufferedReader br=new BufferedReader(new InputStreamReader (System.in));

n=Integer.parseInt(br.readLine());



while(i>0){