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[]){
//引用类型变量,传递的是地址,属于引用传递。
str="test ok";
ch[0]='g';
}
}
good and abc
good and gbc
tst ok and abc
tst ok and gbc