不知道怎么改才能按回车直接输出0
还得按一次空格再回车才不出现错误 求教怎么修改
import java.util.Scanner;
public class Length {
public static void main(String[]args){
Scanner in= new Scanner(System.in);
String[]num =null;
num= in.nextLine().split(" ");
int[]number = new int[num.length];
for(int i= 0;i<number.length;i++){
number[i]= Integer.valueOf(num[i]);
}
System.out.println(number.length);
}
}