下列程序运行的结果为:public class Example{String str=new String("good");char[] ch={'a','b','c'};public static void main(String args[]){Example ex=new Example();ex.change(ex.str,ex.ch);System.out.print(ex.str+" and ");Sytem.out.print(ex.ch);}public void change(String str,char ch[]){str="test ok";ch[0]='g';}}A. good and abcB. good and gbcC. test ok and abcD. test ok and gbc

下列程序运行的结果为:

public class Example{

String str=new String("good");

char[] ch={'a','b','c'};

public static void main(String args[]){

Example ex=new Example();

ex.change(ex.str,ex.ch);

System.out.print(ex.str+" and ");

Sytem.out.print(ex.ch);

}

public void change(String str,char ch[]){

str="test ok";

ch[0]='g';

}

}

A. good and abc

B. good and gbc

C. test ok and abc

D. test ok and gbc


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