Java 在子类中设置方法

我需要通过调用超类中的set方法来设置子类中的值。我需要从子类中设置怪物名称和生命值

外星人类

public class Alien {
    //Instance variables
    public String monsterName;
    public int HP;
    //A method that sets monster properties
    public void setValues(String monsterN, int health) {
        monsterName = monsterN;
        HP = health;
    }
    //A method that returns the monster name
    public String getName() {
        return monsterName;
    }
    //A method that returns monster's health
    public int getHP() {
        return HP;
    }
    //ToString method that prints out the info
    public String toString() {
        return("Monster name: " + getName() + "Monster's current health  point: " + getHP());
    }
}

public class SnakeAlien extends Alien {
    //Instance variable
    //Set the snake values
    Alien aObject = new Alien();
    aObject.setvalues("Snake\n" 55));
}

public class Main {

    public static void main(String[] args) {
        Alien object = new Alien();
        object.toString();
        System.out.println(object);

    }

}

蛇类

public class Alien {
    //Instance variables
    public String monsterName;
    public int HP;
    //A method that sets monster properties
    public void setValues(String monsterN, int health) {
        monsterName = monsterN;
        HP = health;
    }
    //A method that returns the monster name
    public String getName() {
        return monsterName;
    }
    //A method that returns monster's health
    public int getHP() {
        return HP;
    }
    //ToString method that prints out the info
    public String toString() {
        return("Monster name: " + getName() + "Monster's current health  point: " + getHP());
    }
}

public class SnakeAlien extends Alien {
    //Instance variable
    //Set the snake values
    Alien aObject = new Alien();
    aObject.setvalues("Snake\n" 55));
}

public class Main {

    public static void main(String[] args) {
        Alien object = new Alien();
        object.toString();
        System.out.println(object);

    }

}

主类

public class Alien {
    //Instance variables
    public String monsterName;
    public int HP;
    //A method that sets monster properties
    public void setValues(String monsterN, int health) {
        monsterName = monsterN;
        HP = health;
    }
    //A method that returns the monster name
    public String getName() {
        return monsterName;
    }
    //A method that returns monster's health
    public int getHP() {
        return HP;
    }
    //ToString method that prints out the info
    public String toString() {
        return("Monster name: " + getName() + "Monster's current health  point: " + getHP());
    }
}

public class SnakeAlien extends Alien {
    //Instance variable
    //Set the snake values
    Alien aObject = new Alien();
    aObject.setvalues("Snake\n" 55));
}

public class Main {

    public static void main(String[] args) {
        Alien object = new Alien();
        object.toString();
        System.out.println(object);

    }

}

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我知道如何通过主类设置这些值，但我需要从子类

SnakeAlien

中进行设置，该子类源自

Alien

类。

因为所有内容都是公共的（顺便说一句，这很糟糕），您只需在子类中调用超类的方法即可。甚至不需要超级

---

不过，您应该将您不想接触的成员从外部更改为至少受保护的成员，如果您永远不想制作纯外星对象，您应该将其设置为avstract类。

我没有理解要点。我如何从没有对象的超类调用方法？@TecHummer好吧，你有一个对象。事实上你就在里面。想象一下继承的函数，就好像它们被连接到子类的源代码中一样。我还是不明白。如何在子类中使用来自超级类的方法？@TecHummer您是否阅读过我的评论？超类中的方法基本上都在子类中，只需使用它们，不要创建新的外来对象