homework 3

//动作接口
public interface Printer {
    void print();
}
//一级组件
public class Component implements Printer {
    private String name;
    public Component(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    @Override
    public void print() {
        System.out.println(" -" +name);
    }
}
//二级组件
public class Widget implements Printer {
    private String name;
    public Widget(String name) {
        this.name = name;
    }
    @Override
    public void print() {
        System.out.println("  --" + name);
    }
}
//一级容器
public class WinForm extends Component {
    private List<Component> list = new ArrayList<>();
    public WinForm(String name) {
        super(name);
    }
    public void add(Component component) {
        this.list.add(component);
    }
    public void remove(Component component) {
        list.remove(component);
    }
    @Override
    public void print() {
        System.out.println(getName());
        list.forEach(s -> { s.print();});
    }
}
//二级容器
public class Frame extends Component {
    private List<Widget> list = new ArrayList<>();
    public Frame(String name) {
        super(name);
    }
    public void add(Widget widget) {
        list.add(widget);
    }
    public void remove(Widget widget) {
        list.remove(widget);
    }
    @Override
    public void print() {
        super.print();
        list.forEach(s -> {
            s.print();
        });
    }
}
public class Picture extends Component {
    public Picture(String name) {
        super(name);
    }
}
public class Button extends Component {
    public Button(String name) {
        super(name);
    }
}
//组件
public class CheckBox extends Widget {
    public CheckBox(String name) {
        super(name);
    }
}
public class Label extends Widget {
    public Label(String name) {
        super(name);
    }
}
public class LinkLable extends Widget {
    public LinkLable(String name) {
        super(name);
    }
}
public class PasswordBox extends Widget {
    public PasswordBox(String name) {
        super(name);
    }
}
public class TextBox extends Widget {
    public TextBox(String name) {
        super(name);
    }
}
//客户端
public class Client {
    public static void main(String[] args) {
        WinForm winForm = new WinForm("Window窗口");
        Picture pic = new Picture("LOGO图片");
        winForm.add(pic);
        winForm.add(new Button("登录"));
        winForm.add(new Button("注册"));
        Frame frame = new Frame("FRAME1");
        frame.add(new Label("用户名"));
        frame.add(new TextBox("文本框"));
        frame.add(new Label("密码"));
        frame.add(new PasswordBox("密码框"));
        frame.add(new CheckBox("复选框"));
        frame.add(new TextBox("记住用户名"));
        frame.add(new LinkLable("忘记密码"));
        winForm.add(frame);
        winForm.print();
    }
}
//结果
Window窗口
 -LOGO图片
 -登录
 -注册
 -FRAME1
  --用户名
  --文本框
  --密码
  --密码框
  --复选框
  --记住用户名
  --忘记密码