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题目:
public class Example {
String srt = new String("good");
char[] ch = {'a','b','c'};
public static void main(String[] args){
Example ex = new Example();
ex.change(ex.srt, ex.ch);
System.out.print(ex.srt + " and ");
System.out.print(ex.ch);
}
private void change(String str, char[] ch) {
str = "test ok";
ch[0] = 'g';
}
}
问题:上面的程序运行的结果是?
A:good and abc
B:good and gbc
C:test ok and abc
D:test ok and gbc
解析:
实际上这道题考察的是值传递的问题,我画个图,大家就一目了然了
结果验证:
答案:B
都看到这里了,不考虑点个赞再走嘛
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