编辑代码

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入月份:");
        String month = sc.nextLine();//int month = sc.nextInt();这是输入整数,尝试改了字符串类型
        switch(month){
        case "1":    //case 语句也改为字符串类型加 ""
        case "2":
        case "3":
            System.out.println(month + " 月属于春季");
            break;
        case "4":
        case "5":
        case "6":
            System.out.println(month + " 月属于夏季");
            break;
        case "7":
        case "8":
        case "9":
            System.out.println(month + " 月属于秋季");
            break;
        case "10":
        case "11":
        case "12":
            System.out.println(month + " 月属于冬季");
            break;
        default:
            System.out.println("你输入的并非月份。\n希望她开心每一天");
      }
    sc.close();
	}
}