下面这个类让我感到迷惑，望高手解答！
public class Test {

public static void changeStr(String str){

str="welcome";

}

public static void main(String[] args) {

String str="1234";

changeStr(str);

System.out.println(str);

}

} 1 楼 lordhong 2007-05-15 pass by value...