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 "); for(int i=0;i<ex.ch.length;i++){ System.out.print(ex.ch[i]);} } public void change(String str,char ch[]){ str="test ok"; ch[0]='g'; }}请问各位大神,为什么输出结果是good and gbc
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