Week 1: Types, condition clauses and loops/18. Positives and negatives

Write a program that asks the user for integers.
When the user enters a zero, the program prints the total number of positive and negative numbers entered.
The program then terminates.



Example execution:
Give a number: 2
Give a number: -3
Give a number: -4
Give a number: 5
Give a number: -1
Give a number: 0
Positives: 2
Negatives: 3




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import java.util.Random;
import java.util.Scanner;



public class Test{
    public static void main(String[] args){
        final Random r = new Random();
        
        
        Scanner reader= new Scanner(System.in);
        int user_num = -100;
        int pos = 0;
        int neg = 0;

        while (user_num != 0) {
            System.out.print("Give a number: ");
            user_num = Integer.valueOf(reader.nextLine());

            if (user_num > 0) {
              pos++;
            }
            else if (user_num < 0) {
              neg++;
            }
            else {
              break;
            }
            
        }
        

        System.out.println("Positives: "+pos);
        System.out.println("Negatives: "+neg);


        
    }
}








Test number 1
Give a number: 2
Give a number: -3
Give a number: -4
Give a number: 5
Give a number: -1
Give a number: 0
Positives: 2
Negatives: 3

Test number 2
Give a number: 1
Give a number: 2
Give a number: 3
Give a number: 4
Give a number: -1
Give a number: -2
Give a number: -3
Give a number: -6
Give a number: -7
Give a number: -8
Give a number: 0
Positives: 4
Negatives: 6

Test number 3
Give a number: -5
Give a number: -10
Give a number: -11
Give a number: -12
Give a number: 3
Give a number: 2
Give a number: 5
Give a number: 0
Positives: 3
Negatives: 4