import java.util.Scanner; public class JudgeMonth {   public static void main(String[] arg){     Scanner scan = new Scanner(System.in);     System.out.println("請輸入月份:");     int month = scan.nextInt();     switch(month){       case 12:       case 1:       case 2:         System.out.println("冬季");         break;       case 3:       case 4:       case 5:         System.out.println("春季");         break;       case 6:       case 7:       case 8:         System.out.println("夏季");         break;       case 9:       case 10:       case 11:         System.out.println("秋季");           break;       default:         System.out.println("沒有這個月份！請重新輸入.");     }   } }