Question

Only used main method please.

(Count positive and negative numbers and compute the average, of numbers)
Write a program that reads an unspecified number of integers , determines how many positive and negative values have been read, and computes the total and average of the input values (not counting zeros). Your program ends with the input 0.
Display the average as a floating-point number.
Display the total as a floating-point number.
Display the lowest number in the list.
Display the largest number in the list
Display how many numbers are in the list
Display how many negative numbers
Display how many positive numbers

SAMPLE RUN #1: java AvgWithLoop

Enter an integer, the input ends if it is 0:-44 -33 -12 15 89 45 113 117 45 0↵
The number of numbers is 9
The number of positives is 6↵
The number of negatives is 3↵
The largest number is 117
The smallest number is -44
The total is 335.0↵
The average is 37.22↵

Answer 1

import java.util.Scanner;

public class AvgWithLoop {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter an integer, the input ends if it is 0:");
        int num, pos = 0, neg = 0, min = Integer.MAX_VALUE, max = Integer.MIN_VALUE, count = 0;
        double total = 0;
        while (true) {
            num = in.nextInt();
            if (num == 0)
                break;
            ++count;
            total += num;
            if (num > 0) pos += num;
            else neg += num;
            if (num > max) max = num;
            if (num < min) min = num;
        }
        System.out.println("The number of numbers is " + count);
        System.out.println("The number of positives is " + pos);
        System.out.println("The number of negatives is " + neg);
        System.out.println("The largest number is " + max);
        System.out.println("The smallest number is " + min);
        System.out.println("The total is " + total);
        System.out.printf("The average is %.2f\n", total / count);
    }
}