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Java简单的封装-02

青乌 2022-04-13 阅读 70

Person类:
   封装相关相同的属性
   比如:
String name;
String sex;
intr() 为自我介绍方法。

public class Person {
    String name;
    String sex;

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

    public void intr() {
        System.out.println(this.name + " " + this.sex);
    }

}

Student类:

public class Student extends Person {
    //继承父类以后先确保有父再有子子类必须调用父类的构造
    public Student(String name, String sex) {
        super(name, sex);
        //属性都交给父类维护
    }
}

Teacher类:

public class Teacher extends Person {
    String edu;
    String pos;

    public Teacher(String name, String sex, String edu, String pos) {
        super(name, sex);
        //老师需要自己维护个性化的东西
        this.edu = edu;
        this.pos = pos;
    }

    public void intr() {
        super.intr();
        System.out.println(this.edu + " " + this.pos);
    }
}

测试类:

public class Test {
    public static void main(String[] args) {
        Student s = new Student("DOuZi","男");
        s.intr();

        Teacher t = new Teacher("张三","男","博士","副教授");
        t.intr();
    }
}
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