题目内容
(请给出正确答案)
[单选题]
阅读下面程序Strings="Hello";Stringt=s;t="1234"s="4321"t代表的字符串为()
A.null
B.1234
C.Hello
D.4321
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A.null
B.1234
C.Hello
D.4321
A.Labell=newLabel("Hello")
B.Labell=newLabel()l.setText("Hello")
C.Labell=newLabel()l.setCaption("Hello")
D.Labell=newLabel()l.setCaption="Hello"
A.extends
B.implements
C.:
D.空
A.aceg
B.ACEG
C.abcdefg
D.abcd
A.StringgetAddress(){return"DalianChina"}
B.StringgetAddress(){Strings="DalianChina"returns}
C.StringgetAddress(){return1}
D.StringgetAddress(){returntrue}
A.32
B.23
C.编译出错
D.运行出错
A.*
B.**
C.***
D.****
A. 1213
B.213
C.321
D.123