import java.util.Scanner;public class Demo8 {public static void main(String[] args) { // TODO Auto-generated method stub? ? ?Scanner scanner=new Scanner(System.in);? ? ?System.out.println("請(qǐng)輸入月份");? ? ?int mon = scanner.nextInt();? ? ? String sea; ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ?switch(mon){? ? ?case 1:? ? ?case 2:? ? ?case 12:? ? sea ="winter";? ? ?break;? ? ?? ? ?case 3:? ? ?case 4:? ? ?case 5:? ? sea="spring";? ? ?break;? ??? ? ?case 6:? ? case 7:? ? case 8:? ? sea="summer";? ? ?break;? ? ?? ? case 9:? ? ?case 10:? ? ?case 11:? ? sea="autumn";? ? ?? ? ?default:? ? ? ? ? System.out.println("月份錯(cuò)誤");? ? ?}? ? ?System.out.println(sea); }}結(jié)果如下：Exception in thread "main" java.lang.Error: Unresolved compilation problem:? The local variable sea may not have been initialized at Demo8.main(Demo8.java:37)
請(qǐng)教大家我這段代碼是什么問(wèn)題？謝謝大家（輸入一個(gè)月份，輸出季節(jié)）
寶慕林5339449
2018-03-26 11:49:03
