java的switch case

import java.util.Scanner;public class Hello {public static void main(String[] args) {Scanner in = new Scanner(System.in);int type = in.nextInt();switch(type){case 1:case 2:System.out.println("你好");break;case 3:System.out.println("晚上好");break;case 4:System.out.println("再见");break;default:System.out.println("啊？什么？");break;}}
}