Java switch case 语句是可以合并的

import java.util.Scanner;

// switch case 语句是可以合并的
public class SwitchCaseTest {
    public static void main(String[] args) {

        Scanner sca = new Scanner(System.in);
        System.out.println("请输入学生的成绩");
        int score = sca.nextInt();
        switch (score/10)
        {
            case 0:
            case 1:
            case 2:
            case 3:
            case 4:
            case 5:
                System.out.println("成绩不及格");
                break;
            case 6:
            case 7:
            case 8:
            case 9:
            case 10:
                System.out.println("成绩及格");
                break;
        }


        //更加优化的一种方法
        switch (score/60)
        {
            case 0:
                System.out.println("成绩不及格");
                break;
            case 1:
                System.out.println("成绩及格");
                break;
        }

    }
}