指出下列程序运行的结果()
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 "); System.out.print(ex.ch); } public void change(String str,char ch[ ]){ str = "test ok"; ch[0] = 'g'; } }