抽象类练习老师案例

/*
老师案例
具体事物：基础班老师，就业班老师
共性：姓名，年龄，讲课。


分析：
基础班老师
姓名，年龄
讲课。
就业班老师
姓名，年龄
讲课。
实现：
老师类
基础班老师
就业班老师
*/
//定义抽象的老师类
abstract class Teacher {
//姓名
private String name;
//年龄
private int age;

public Teacher() {}

public Teacher(String name,int age) {
this.name = name;
this.age = age;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

//抽象方法
public abstract void teach();
}


//基础班老师类
class BasicTeacher extends Teacher {
public BasicTeacher(){}

public BasicTeacher(String name,int age) {
super(name,age);
}

public void teach() {
System.out.println("基础班老师讲解JavaSE");
}
}


//就业班老师类
class WorkTeacher extends Teacher {
public WorkTeacher(){}

public WorkTeacher(String name,int age) {
super(name,age);
}

public void teach() {
System.out.println("就业班老师讲解JavaEE");
}
}


class AbstractTest2 {
public static void main(String[] args) {
//具体的类测试，自己玩

//测试(多态)
//基础班老师
Teacher t = new BasicTeacher();
t.setName("刘意");
t.setAge(30);
System.out.println( t.getName()+"---"+ t.getAge());
t.teach();
System.out.println("--------------");

t = new BasicTeacher("刘意",30);
System.out.println( t.getName()+"---"+ t.getAge());
t.teach();
System.out.println("--------------");

//就业班老师
t = new WorkTeacher();
t.setName("林青霞");
t.setAge(27);
System.out.println( t.getName()+"---"+ t.getAge());
t.teach();
System.out.println("--------------");

t = new WorkTeacher("林青霞",27);
System.out.println( t.getName()+"---"+ t.getAge());
t.teach();
}
}