写个小程序试下：
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[]) {
System.out.println("str:"+str+", ch:"+ch);
str = "test ok";
ch[0] = 'g';
}
}
运行结果：
str:good, ch:[C@de6ced
good and gbc