import java.util.Scanner; public class xxx222 { public static void main(String[] args) { System.out.println("请输入你的选择"); System.out.println("1水煮鱼"); System.out.println("2土豆"); System.out.println("3青菜"); System.out.println("4退出"); int x = 1; Scanner s=new Scanner(System.in); switch (x) { case 1: {System.out.println("你选择的是水煮鱼");}break; case 2: {System.out.println("你选择的是土豆");}break; case 3: {System.out.println("你选择的是青菜");}break; case 4: {System.out.println("退出");}break; System.exit( ); }