Jafe Lee

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          當枚舉類型用在switch語句中時,語法有一點點特別。看例子:
          package?other;
          import?basic.Day;
          public?class?SwitchTest
          {
          ????
          public?static?void?main(String?[]?args)
          ????{
          ????????
          int?FRIDAY?=?5;
          ????????System.out.println(FRIDAY);
          ????????
          ????????Day?today?
          =?Day.SATURDAY;
          ????????
          switch(today)
          ????????{
          ????????
          case?FRIDAY:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          case?SATURDAY:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          case?SUNDAY:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          case?MONDAY:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          case?TUESDAT:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          case?WEDNESDAY:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          case?THURSDAY:
          ????????????System.out.println(
          "Today?is?"?+?today.toString().toLowerCase());
          ????????????
          break;
          ????????
          default:
          ????????????System.out.println(
          "otherday");
          ????????}
          ????}
          }
          注意在case標簽中,Day不出現,即case Day.FRIDAY是不合法的。而在其他地方出現時則必須用Day.FRIDAY
          posted on 2007-09-08 14:43 Jafe Lee 閱讀(7582) 評論(0)  編輯  收藏 所屬分類: Java
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