题解 | #判断学生成绩等级#

简单的switch分支操作

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String grade =scanner.next();


        //write your code here......
        switch(grade){
            case "A":
                System.out.println("优秀");
                break;
            case "B":
                System.out.println("良好");
                break;
            case "C":
                System.out.println("及格");
                break;
            case "D":
                System.out.println("不及格");
                break;
            default :
                System.out.println("未知等级");
        }

    }
}