类作为成员变量类型

成员变量不光可以用基本类型，还可以用任何一种类

package demo03;
//游戏当中的英雄角色类
public class Hero {
    private  String name;//英雄名字
    private int age;//英雄年龄
    private  Weapon weapon;//武器

    public Hero() {
    }

    public Hero(String name, int age, Weapon weapon) {
        this.name = name;
        this.age = age;
        this.weapon = weapon;
    }

    public void attact(){
        System.out.println("年龄为"+age+"的"+name+"用"+weapon.getCode()+"攻击敌方");
    }

    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 Weapon getWeapon() {
        return weapon;
    }

    public void setWeapon(Weapon weapon) {
        this.weapon = weapon;
    }
}

package demo03;

public class Weapon {
    private  String code;//武器的代号

    public Weapon() {
    }

    public Weapon(String code) {
        this.code = code;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }
}

package demo03;

public class DemoMain {
    public static void main(String[] args) {
        //创建一个英雄
        Hero hero=new Hero();
        hero.setName("张艺兴");
        hero.setAge(26);

        //创建一个武器对象
        Weapon weapon=new Weapon("平衡");
        //为英雄配套武器
        hero.setWeapon(weapon);
        //年龄为26的张艺兴用平衡攻击敌方
        hero.attact();
    }
}