5-1的编程练习是无法使用Scanner吗

import java.util.Scanner;
public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("请输入你的成绩：");
        Scanner input=new Scanner(System.in);
        int score = input.nextInt();
        int count = 0;
 
 System.out.println("加分前成绩："+score);
        //打印输出加分前成绩
          while (score<60){
              score++;
              count++;
          }
     
         System.out.println("加分后成绩："+score);
          System.out.println("共加了"+count+"次！");

    }
}