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                # 對象型數組 --- ## 問題 題目:存在如下test方法: private static void test(Object[ ] o) { } 請問,下面哪種調用會發生錯誤? A、 int[ ] a = new int[3]; test(a); B、 int[ ][ ] a = new int[2][3]; test(a); C、String[ ] s = new String[ ]; test(s); ## 結果 A。 ## 結論 #### Object[ ]指的是對象型數組,也就是數組的元素必須是引用類型,不能是基本數據類型。int[]類型的數組本身是引用類型,但是元素是基本數據類型,所以不是Object[ ]類型。
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