Please see what is wrong in my code. Thank you
package com.codegym.task.task05.task0507;
/*
Arithmetic mean
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
//write your code here
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
double mean=0, sum=0,count=0;
while(true){
int a =0;
a = Integer.parseInt(reader.readLine());
if(a>=0){
sum = sum + a;
count++;
}
else{
if(count>0){
mean = sum/count;
}
break;
}
}
System.out.println(mean);
}
}