统计输入的数字为正数和负数的个数

import java.util.Scanner;
public class day01{
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    boolean boo = true;
    int positiveNumber = 0;//正数
    int negativeNumber = 0;//负数
    while (boo) {
      System.out.println("请输出一个数字:");
      int number = sc.nextInt();
      if (number>0) {
        positiveNumber++;
      }else if (number<0) {
        negativeNumber++;
      }else {
        break;

      }
    }
    System.out.println("正数个数为:"+positiveNumber+"负数个数为:"+negativeNumber);
  }
}

 

posted on 2020-07-19 21:45  静笃归心  阅读(467)  评论(0编辑  收藏  举报