Person：

package heima006;

public class Person {
    private String name;
    private int age;

    public Person() { }
    public Person(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;
    }
}

Teacher：

package heima006;

public class Teacher extends  Person {
    public Teacher(){

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

    }
    public void teach(){
        System.out.println("用爱成就每一位学生");
    }
}

PersonDemo：

package heima006;
/*测试类*/
public class PersonDemo {
    public static void main(String[] args) {
        //创建老师类对象并进行测试
        Teacher t1=new Teacher();
        t1.setName("林青霞");
        t1.setAge(30);
        System.out.println(t1.getName()+","+t1.getAge());
        t1.teach();
        Teacher t2=new Teacher("风清扬",20);
        System.out.println(t2.getName()+","+t2.getAge());
        t2.teach();
    }
}

输出结果：