java多态性的编程题目

发布网友发布时间：2022-05-11 01:13

共1个回答

热心网友时间：2023-11-23 02:47

public class People {
private String name;
private Integer age;
private String phone;
public String getMessage() {
return "People: 姓名："+name+"，年龄："+age+"，电话："+phone;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}

public class Student extends People{
private Integer id;

public String getMessage(Integer id) {
return "Student: 姓名："+super.getName()+"，年龄："+super.getAge()+"，电话："+super.getPhone()+"，学号："+id;
}

public Integer getId() {
return id;
}

public void setId(Integer id) {
this.id = id;
}

}

public class S {

public static void main(String[] args) {
Student student = new Student();
student.setId(13);
student.setName("李三");
student.setAge(18);
student.setPhone("123-4567-8901");
System.out.println(student.getMessage(student.getId()));
}

}