判断输入的数，正数多少个。负数多少个， 到零时退出程序

public static void main(String[] args) {
    Scanner sc=new Scanner(System.in);
        System.out.println("请开始输入");
        int input=sc.nextInt();
        int zhengshu=0;
        int fushu=0;
        while(input!=0){
            if(input>0){
                zhengshu++;
            }else{
                fushu++;
            }
            input=sc.nextInt();
        }
        
        System.out.println("正数:"+zhengshu+"个,负数:"+fushu+"个");
}