练习10.9-3

顶级父类

package hello;

public class Pc {
    
    public Pc()
    {
        System.out.println("电脑构造方法");
    }

    String pinPai;
    public void getPinpai(String pinpai)
    {
        pinPai = pinpai;
        System.out.println("我的电脑品牌是：" + pinPai);
    }
    
    
    public void shangwang(String website)
    {
        System.out.println("我用电脑经常上的网站是：" + website);
    }
}

父类

package hello;

public class Notebookpc extends Pc{
    
    public Notebookpc()
    {
        System.out.println("笔记本电脑构造方法");
    }
    
    
    
    public void shangwang(String website)
    {
        System.out.println("我用笔记本经常上的网站是：" + website);
    }

    
}

子类

package hello;

public class Supernbpc extends Notebookpc{
    
    public Supernbpc()
    {
        System.out.println("超级笔记本电脑构造方法");
    }

    
    public void shangwang(String website)
    {
        System.out.println("我用超级本经常上的网站是：" + website);
    }

}

构造子类实例

package hello;

public class Test1 {

    public static void main(String[] args) {
        
        // TODO Auto-generated method stub
        
        Supernbpc snb = new Supernbpc();
        
        snb.getPinpai("Acer");
        snb.shangwang("ACFun");
        
        

    }
    

}

运行结果

可以看出构建顺序是：先顶级父类，然后是上一级父类，最后是子类