来源于：https://www.nowcoder.com/test/question/done?tid=14302398&qid=25373#summary
下列java程序的输出结果为____。
public class Example{
String str=new String("hello");
char[]ch={'a','b'};
public static void main(String args[]){
Example ex=new Example();
ex.change(ex.str,ex.ch);
System.out.print(ex.str+" and ");
System.out.print(ex.ch);
}
public void change(String str,char ch[]){
str="test ok";
ch[0]='c';
}
}
正确答案: B 你的答案: E (错误)
hello and ab
hello and cb
hello and a
test ok and ab
test ok and cb
test ok and c