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                # 引用類型值傳遞(一) --- ## 問題 下面程序片段輸出的結果是什么? ``` public class Test { public static void main(String[] args) { Integer i = new Integer(1000); add100(i); System.out.println(i.intValue()); } private static void add100(Integer i) { int val=i.intValue(); val+=100; i =new Integer(val); } } ``` ## 結果 1000 ## 結論 #### Java 語言中,進行值傳遞的時候,引用類型傳遞的是虛地址。題目中重新創建了一個Integer對象,產生新的虛地址,對main方法中的值沒有改變。 #### intValue()方法是指調用虛地址所引用的具體值。
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