....
package com.javarush.task.task05.task0507;
import java.io.*;
import java.io.*;
/*
Среднее арифметическое
*/
public class Solution {
public static void main(String[] args) throws Exception {
//напишите тут ваш код
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while (true){
int sum = 0;
int number1 = Integer.parseInt(reader.readLine());
if (number1 !=-1){
sum = sum + number1;
}
else {
sum = sum/0;
System.out.println(sum);
}
int number2 = Integer.parseInt(reader.readLine());
if (number2 !=-1){
sum = number2 + sum;
}
else {
sum = sum/1;
System.out.println(sum);
}
int number3 = Integer.parseInt(reader.readLine());
if (number3 !=-1){
sum = number3 + sum;
}
else {
sum = sum/2;
System.out.println(sum);
}
int number4 = Integer.parseInt(reader.readLine());
if (number4 !=-1){
sum = number4 + sum;
}
else {
sum = sum/3;
System.out.println(sum);
}
int number5 = Integer.parseInt(reader.readLine());
if (number5 !=-1){
sum = number5 + sum;
}
else {
sum = sum/4;
System.out.println(sum);
}
int number6 = Integer.parseInt(reader.readLine());
if (number6 !=-1){
sum = number6 + sum;
}
else {
sum = sum/5;
System.out.println(sum);
}
break;
}
}
}