switch结构

switch结构

import java.util.Scanner;

public class switch_ {
    public static void main(String[] args) {

        System.out.println("开始");

        Scanner sc = new Scanner(System.in);

        int week = sc.nextInt();

        switch (week) {
            case 1:
                System.out.println("星期一");
                break;//起到阻断后面程序的作用
            case 2:
                System.out.println("星期二");
                break;
            case 3:
                System.out.println("星期三");
                break;
            case 4:
                System.out.println("星期四");
            case 5:
                System.out.println("星期五");
                break;
            case 6:
                System.out.println("星期六");
                break;
            case 7:
                System.out.println("星期日");
                break;
            default:
                System.out.println("你输入的星期数有误");
                break;


        }

        System.out.println("结束");

    }
}