Java高手速来！设定一个java程序，输入五个数字，输出正数，负数，0的个数。希望拍图回答

public class Yugi{
public static void main(String[] args){
Scanner scan = new Scaner(System.in);
int num = 5;
while(true){
System.out.println("输入"+num+"个数字");
int[] arr = new int[num];
for(int i = 0; i < num; i++){
int a = scan.nextInt();
arr[i] = a;
}
for(int i = 0; i < num; i++){
int a = arr[i];
if(a > 0) {
System.out.println("正数");
}else if(a < 0){
System.out.println("负数");
}else{
System.out.println(0);
}
}
}
}
}

我未做异常处理，参考一下