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【单选题】
有如下代码: public class Exercise210 { public static void main(String[] args) { String s; System.out.println("s="+s); } } 上述代码编译运行的结果是( )。
A.
s=null
B.
s=
C.
由于String s没有被初始化,代码不能编译通过
D.
代码得到编译,但捕获到NullPointException异常
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