Question

This is a Java program

Write a program that reads an unspecified number of integers, determines home 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 to 2 decimal places. System.out.println(countPositive);

System.out.println(countNegative);

System.out.println(total);

System.out.printf("%.2f",total * 1.0 / count);

Assume inputs are always integer [-912985158, 912985158] and ends with 0.

Input 1 2 -1 3 0

Output 3 1 5 1.25

NOTE: 1- When the input is 0 , that means, user didn't enter anything and so the expected output is single zero 0 . // Do not count zero as positive or negative number!

2- You need to read all the inputs in one single line with one space between each number. Exactly like the provided examples. Do not add extra spaces.

3- The output needs to be in separate lines.

You must use this Driver Class.

class DriverMain{

public static void main(String args[]){

GW3_P4 gw3P4 = new GW3_P4();

gw3P4.solution();

}

}

Answer 1

$\color{blue}\underline{GW3\_P4.java:}$

import java.util.Scanner;

public class GW3_P4 {

    public void solution() {
        int total = 0;
        int num, count = 0, countPositive = 0, countNegative = 0;
        Scanner in = new Scanner(System.in);
        while (true) {
            num = in.nextInt();
            if(num == 0) {
                break;
            }
            if(num < 0) {
                countNegative++;
            } else {
                countPositive++;
            }
            total += num;
            count++;
        }
        System.out.println(countPositive);
        System.out.println(countNegative);
        System.out.println(total);
        System.out.printf("%.2f",total * 1.0 / count);
    }

}

$\color{blue}\underline{DriverMain.java:}$

class DriverMain{

    public static void main(String args[]){
        GW3_P4 gw3P4 = new GW3_P4();
        gw3P4.solution();
    }

}

1 2-1 3 0 1.25 Process finished with e xit code 0