public static void main(String[] args) {
        Container form = new WinForm("WINDOW窗口");
        form.addComponent(new Picture("LOGO图片"));
        form.addComponent(new Button("登录"));
        form.addComponent(new Button("注册"));
        Container frame = new Frame("FRAME1");
        frame.addComponent(new Label("用户名"));
        frame.addComponent(new TextBox("文本框"));
        frame.addComponent(new Label("密码"));
        frame.addComponent(new PasswordBox("密码框"));
        frame.addComponent(new CheckBox("复选框"));
        frame.addComponent(new Label("记住用户名"));
        frame.addComponent(new LinkLabel("忘记密码"));
        form.addComponent(frame);
        form.render();
    }

public abstract class Component {
    
    protected String name;
    
    public Component(String name) {
        this.name = name;
    }
    
    public void render() {
        String className = this.getClass().getTypeName();
        className = className.substring(className.lastIndexOf(".") + 1);
        System.out.println(String.format("print %s(%s)", className, this.name));
    }
}

public class Container extends Component {
    protected List<Component> components;
    
    public Container(String name) {
        super(name);
        this.components = new ArrayList<>();
    }
    
    @Override
    public void render() {
        super.render();
        this.components.forEach(component -> {
            component.render();
        });
    }
    
    public void addComponent(Component component) {
        this.components.add(component);
    }
    
    public void removeComponent(Component component) {
        this.components.remove(component);
    }
}

public class WinForm extends Container {
    public WinForm(String name) {
        super(name);
    }
}

public class Frame extends Container {
    public Frame(String name) {
        super(name);
    }
}

public class Picture extends Container {
    public Picture(String name) {
        super(name);
    }
}