标题: Demo_Person 关于extends的程序+有参构造方法 [打印本页] 作者: tuxj9091 时间: 2016-3-19 23:22 标题: Demo_Person 关于extends的程序+有参构造方法 class Demo_Person {
public static void main(String[] args) {
/*Student s1 = new Student("张三",18);
System.out.println(s1.getName()+" "+s1.getAge());
s1.eat();
System.out.println("--------------------");*/
Teacher t1 = new Teacher();
t1.setName("李老师");
t1.setAge(40);
System.out.println(t1.getName()+" "+t1.getAge());
//s1.Study();
}
}
class Person {
private String name;
private int age;
public Person() {}; //空参构造
public Person(String name,int age ) {
this.name = name;
this.age = age;
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setAge(int age) {
this.age = age;
}
public int getAge() {
return age;
}
public void eat() {
System.out.println("吃饭");
}
}
class Student extends Person {
public Student() {}
public Student (String name,int age) {
super(name,age);
}
public void Study() {
System.out.println(this.getName()+"学生学习");
}
}
class Teacher extends Person {
public Teacher() {};
public Teacher(String name,int age) {
super(name,age);
}
public void Teach() {
System.out.println(this.getName()+"讲课");
}
}