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用jAvA编写两个类,pErson和stuDEnt, PErson类有三...

//第一个类package com.openwan.util;public class Person

一个学生类Student,它继承自Person类.用到上面的Person类和Date类.(Java编

import java.util.*; public class TestCollection {

Person.java: public class Person { private Str

class PersonB { String name ; int age; public

Person.java public class Person {private String na

public class Person { public String name; publ

interface Person{public abstract void SetName(Stri

public class Person{ protected String name; pu

package test; /** * Person中包含4个保护型的数据成员name,add

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