Switch 选择结构

package zaiyang.struct;

public class SwitchDemo01 {
    public static void main(String[] args) {
        //case穿透 //switch 匹配一个具体的值
        char grade = 'A';

        switch (grade){
            case 'A':
                System.out.println("优秀");
                break; //可选
            case 'B':
                System.out.println("良好");
                break; //可选
            case 'C':
                System.out.println("及格");
                break; //可选
            case 'D':
                System.out.println("再接再厉");
                break;
            case 'E': //可选
                System.out.println("挂科");
                break;
            default:
                System.out.println("未知等级");


        }
    }
}

package zaiyang.struct;

public class SwitchDemo02 {
    public static void main(String[] args) {
        String name = "会武功";

        switch (name){
            case "会武功的羊":
                System.out.println("会武功的羊");
                break;
            case "追风的羊":
                System.out.println("追风的羊");
                break;
            default:
                System.out.println("连哥的名字都不知道");


        }
    }
}