Java 继承练习
分析以下需求，并用代码实现
//注意:子类也叫做派生类
(1)定义一个人类Person
a.包括属性：姓名name、性别gender、年龄age、国籍nationality；
b.包括方法：吃饭eat、睡觉sleep，工作work。
(2)根据人类，派生一个学生类Student.
a.增加属性：学校school、学号stuNumber;
b.重写工作方法(学生的工作是学习)。
(3)根据人类，派生一个工人类Worker.
a.增加属性：单位unit、工龄workAge;
b.重写工作方法（工人的工作是盖房子）。
(4)根据学生类，派生一个学生干部类 StudentLeader.
a.增加属性：职务job;
b.增加方法：开会meeting。
(5)编写主函数分别对上述3类具体人物进行测试。
(6)要求运行结果:
a.学生需要学习!
b.工人的工作是盖房子!
c.学生干部喜欢开会!
嗯…上代码，魔改版…
/*
(1)定义一个人类Person
a.包括属性：姓名name、性别gender、年龄age、国籍nationality；
b.包括方法：吃饭eat、睡觉sleep，工作work。
*/
public class Person {
private String name;
private String gender;
private int age;
private String nationality;
public Person() {
}
public Person(String name, String gender, int age, String nationality) {
this.name = name;
this.gender = gender;
this.age = age;
this.nationality = nationality;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getNationality() {
return nationality;
}
public void setNationality(String nationality) {
this.nationality = nationality;
}
public void eat(){
System.out.println("吃饭");
}
public void sleep(){
System.out.println("睡觉");
}
public void work(){
System.out.println("工作");
}
}
/*
(2)根据人类，派生一个学生类Student.
a.增加属性：学校school、学号stuNumber;
b.重写工作方法(学生的工作是学习)。
*/
public class Student extends Person{
private String school;
private String stuNumber;
public Student(String name, String gender, int age, String nationality, String school, String stuNumber) {
super(name, gender, age, nationality);
this.school = school;
this.stuNumber = stuNumber;
}
public void work(){
System.out.println("好好学习，天天向上");
}
public void show(){
System.out.println("姓名："+super.getName()+"，性别："+super.getGender()+"，年龄："+super.getAge()+"，国籍："
+super.getNationality()+"，学校："+this.getSchool()+",学号:"+this.getStuNumber());
work();
}
public String getSchool() {
return school;
}
public void setSchool(String school) {
this.school = school;
}
public String getStuNumber() {
return stuNumber;
}
public void setStuNumber(String stuNumber) {
this.stuNumber = stuNumber;
}
}
/*
(3)根据人类，派生一个工人类Worker.
a.增加属性：单位unit、工龄workAge;
b.重写工作方法（工人的工作是盖房子）。
*/
public class Worker extends Person{
private String unit;
private int workAge;
public Worker(String name, String gender, int age, String nationality, String unit, int workAge) {
super(name, gender, age, nationality);
this.unit = unit;
this.workAge = workAge;
}
public void work(){
System.out.println("特长：九阴白骨爪");
}
public void show(){
System.out.println("姓名："+super.getName()+"，性别："+super.getGender()+"，年龄："+super.getAge()+"，国籍："
+super.getNationality()+"，单位："+this.unit+"，工龄："+this.workAge);
work();
}
public String getUnit() {
return unit;
}
public void setUnit(String unit) {
this.unit = unit;
}
public int getWorkAge() {
return workAge;
}
public void setWorkAge(int workAge) {
this.workAge = workAge;
}
}
/*
(4)根据学生类，派生一个学生干部类 StudentLeader.
a.增加属性：职务job;
b.增加方法：开会meeting。
*/
public class StudentLeader extends Student{
private String job;
public StudentLeader(String name, String gender, int age, String nationality,
String school, String stuNumber, String job) {
super(name, gender, age, nationality, school, stuNumber);
this.job = job;
}
public void meeting(){
System.out.println("特长：降龙十八掌");
}
public void show(){
System.out.println("姓名："+super.getName()+"，性别："+super.getGender()+"，年龄："+super.getAge()+"，国籍："
+super.getNationality()+"，学校："+super.getSchool()+",学号："+super.getStuNumber()+"，职务："+this.job);
meeting();
}
}
最后测试类:
/*
测试类
*/
public class text {
public static void main(String[] args) {
StudentLeader st = new StudentLeader("郭靖","男",25,"中国",
"射雕英雄传","15","武林盟主");
st.show();
Worker w = new Worker("林超风","女",30,"中国", "桃花岛",28);
w.show();
Student s = new Student("小明","男",8,"课本","语文课本","150");
s.show();
}
}
测试结果：
嗯…觉得加上吃饭睡觉不文雅，就没有调用那个功能。