【简答题】Going home for Christmas is a tradition of the holiday season. No matter where you may be the rest of the years, being at “home” with your family and friends for Christmas is a “must”. The Thanksgivin...
【简答题】已有如下程序: class Person{ private int a; public void change(int m){a=m;} } public class Teacher extends Person { public int b; public static void main(String args[]){ Person p=new Person(); Teacher t=new ...