架构师训练营第三课作业

public abstract class WinForm {
    protected String name;
    public WinForm(String name)
    {
        this.name = name;
    }
    public abstract void addChild(WinForm w);
    public abstract void removeChild(WinForm w);
    public abstract void print();
}

    import java.util.ArrayList;
import java.util.List;
public class Frame extends  WinForm{
    private List<WinForm> children = new ArrayList<WinForm>();
    public  Frame(String name)
    {
        super(name);
    }
    @Override
    public void addChild(WinForm w) {
        children.add(w);
    }
    @Override
    public void removeChild(WinForm w) {
        children.remove(w);
    }
    @Override
    public void print(){
        System.out.println("print " + name);
        for (WinForm f : children) {
            f.print();
        }
    }
}

  public class Contral extends WinForm {
    public  Contral(String name)
    {
        super(name);
    }
    @Override
    public void addChild(WinForm w) {
    }
    @Override
    public void removeChild(WinForm w) {
    }
    @Override
    public void print(){
        System.out.println("print " + name);
    }
}

public class Play {
    public static void main(String[] args)
    {
        WinForm winForm = new Frame("WinFrom(WINDOW窗口)");
        winForm.addChild(new Contral("picture(LOGO图片)"));
        winForm.addChild(new Contral("button(登录)"));
        winForm.addChild(new Contral("button(注册)"));
        WinForm frame = new Frame("Frame(FRAME1)");
        winForm.addChild(frame);
        frame.addChild(new Contral("Label(用户名)"));
        frame.addChild(new Contral("TextBox(文本框)"));
        frame.addChild(new Contral("Label(密码)"));
        frame.addChild(new Contral("PasswordBox(密码框)"));
        frame.addChild(new Contral("CheckBox(复选框)"));
        frame.addChild(new Contral("TextBox(记住用户名)"));
        frame.addChild(new Contral("LinkLable(忘记密码)"));
        winForm.print();
    }
}