定义一个新的类Student类，继承Person 类。

Question

定义一个新的类Student类，继承Person 类。要求:1)增加“school” 属性为String 类型。 2)重 载Student类的构造方法，Student(String n,String I,String school)。3) 重写Person类的info()方法，增加school信息。class Person{ private String name; private String location; Person(String name, String location){ this.name =name; this.location =location ; } public String info() { return "name:"+name+"location:"+location; } 

Answer 1

package designpattern.csdn;

/**
 * Author Bob
 * Date
 * Description
 **/
public class Person {

    public String name;

    public String location;

    public Person(String name, String location){
        this.name = name;
        this.location = location;
    }

    public String info(){
        return "name:" + name + "location:" +location;
    }

    public Person(){

    }

}
package designpattern.csdn;

/**
 * Author Bob
 * Date
 * Description
 **/
public class Student extends Person {

    private String school;

    public Student (String name , String location, String school){
        this.school = school;
        this.name = name;
        this.location = location;

    }

    public String info (){
        return "name:" + name + "location:" +location + "school:"+school;
    }

    public static void main(String[] args) {
        Student student = new Student("李四","北京","北京外国语大学");
        System.out.println(student.info());
    }
}