引用Scanner类:
import java.util.Scanner;
实例化Scanner类:
Scanner person =new Scanner(System.in);
代码实现:
package com.haha;
import java.util.Scanner;
public class Hello {
public static void main(String[] args) {
Scanner person =new Scanner(System.in);
System.out.println("请输入您的成绩:");
int score=person.nextInt();
int count=0;
System.out.println("加分前的成绩:"+score);
while(score<60) {
score++;
count++;
}
System.out.println("加分后的成绩:"+score);
System.out.println("共加了"+count+"次");
}
}
print和println的区别:
println
会自动换行