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What does the following statement do?
Person person2 = null;
a- It declares the variable person2, which currently refers to nothing.
b- It creates a Person object and all its attributes are set to null.
c- It creates a Person object that nothing references.
d- Nothing
Person person2 = null;
a- It declares the variable person2, which currently refers to nothing.
b- It creates a Person object and all its attributes are set to null.
c- It creates a Person object that nothing references.
d- Nothing
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hanson_yi 2002-02-26
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a:同意liukuncn
Luke_cn 2002-02-26
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a：因为person2=null，所以这只是声明了一个变量，并没有为它分配内存
hello_wyq 2002-02-26
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楼上的，是不是用什么灌水机在灌？
111222 2002-02-26
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只需要人民币20元，
你就可以获得本灌水机的程序和Visual C＋＋源代码，
并获得永久性技术支持。
还等什么？灌水等着你！
就在今夜！元宵佳节！
(可怜我的信誉)
richardshen 2002-02-26
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Person person2;
*** this is just declare., no initialization
Person person2=null;
*** this is just declare, initialize to null
Person person2 = new Person();
*** this is to create.
*** this is just declare., no initialization
Person person2=null;
*** this is just declare, initialize to null
Person person2 = new Person();
*** this is to create.
karma 2002-02-26
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a
