java写一个Person类，包含name、age、sex属性，再写一个Student类继承Person类，增加School属性，并实例化。（用构造方法实现，并使用super()）

java写一个Person类，包含name、age、sex属性，再写一个Student类继承Person类，增加School属性，并实例化。（用构造方法实现，并使用super()）

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

        public Person(){
        }

    public Person(String name, int age, String sex) {
        this.name = name;
        this.age = age;
        this.sex = sex;
    }
    public void setName(String name) {this.name = name;}
    public String getName() {return this.name;}

    public void setAge(int age) {this.age = age;}
    public String getAge() {return this.age;}

    public void setSex(String sex) {this.sex = sex;}
    public String getSex() {return this.sex;}
}

public class Student extends Person{
    private String school;

     public Student(){
     }
    public Student(String school, String name, int age, String sex) {
        super(name, age, sex);
        this.school = school;
    }

    public void setSchool(String school) {this.school = school;}
    public String getSchool() {return this.school;}

}

这个地方啊我要声明一下，写了有参构造之后一定要加上无参构造 具体可以从网上搜 也可以加我qq：1477015648 我给你详细解释 另外也可以使用lombok的注解@Date来减少set 和 get 方法 以及减少构造方法（就是说你加上注解之后这些方法就不用你在写了）

class Person {
    private String name;
    private int age;
    private String sex;
    public Person(String name, int age, String sex) {
        this.name = name;
        this.age = age;
        this.sex = sex;
    }
    public void setName(String name) {this.name = name;}
    public String getName() {return this.name;}

    public void setAge(int age) {this.age = age;}
    public String getAge() {return this.age;}

    public void setSex(String sex) {this.sex = sex;}
    public String getSex() {return this.sex;}
}

public class Student extends Person{
    private String school;

    public Student(String school, String name, int age, String sex) {
        super(name, age, sex);
        this.school = school;
    }

    public void setSchool(String school) {this.school = school;}
    public String getSchool() {return this.school;}

    public void static main(String[] args) {
        Person s1 = new Student("清华大学", "刘备", 18, "男");
    }
}

package Chapter1;

public class Student extends Person{
    private String school;

    public Student(String name, int age, String sex,String school) {
        super(name, age, sex);
        this.school = school;
        // TODO Auto-generated constructor stub
    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public static void main(String[] args) {
        Student s = new Student("小明",10,"F","希望小学");
        System.out.println(s.getName()+"今年"+s.getAge()+"岁,他在"+s.getSchool()+"上学");
    }
}

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

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

    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;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }
}

https://blog.csdn.net/qq_39096055/article/details/80235821