单例模式和组合模式

/**
 * 
 * @Description: 界面组件
 *
 *
 */
public interface Component {
	public void print();
	
	public String getName();
	
	default String getSimpleClassName() {
		return this.getClass().getSimpleName();
	}
}

/**
 * 
 * @Description: 容器，可添加额外组件
 *
 *
 */
public interface Container extends Component{
	public void addComponent(Component... components);
	
}

/**
 * 
 * @Description: 组件的抽象实现
 *
 */
public abstract class AbstractComponent implements Component{
	private final String name;
	
	public AbstractComponent(String name) {
		this.name = name;
	}
	
	@Override
	public void print() {
		System.out.println(String.format("print %s(%s)", this.getInfo(), this.getName()));
	}
	@Override
	public String getName() {
		return name;
	}
	
	protected abstract String getInfo();
}

/**
 * 
 * @Description: 容器的抽象实现
 *
 */
public abstract class AbstractContainer implements Container {
	private final String name;
	
	private List<Component> childComponent = new ArrayList<>();
	
	public AbstractContainer(String name) {
		this.name = name;
	}
	
	@Override
	public void addComponent(Component... components) {
		childComponent.addAll(Lists.newArrayList(components));
	}
	
	@Override
	public void print() {
		System.out.println(String.format("print %s(%s)", this.getMyPrint(), this.getName()));
		childComponent.stream().forEach(component -> component.print());
	}
	
	protected abstract String getMyPrint();
	
	
	public String getName() {
		return name;
	}
	
}

/**
 * 
 * @Description: 按钮 CheckBox/Label/LinkLabel/TextBox/PasswordBox
 *
 */
public class Button extends AbstractComponent{
	public Button(String name) {
		super(name);
	}
	@Override
	protected String getInfo() {
		return getSimpleClassName();
	}
}

/**
 * 
 * @Description: FRAME
 *
 */
public class Frame extends AbstractContainer {
	public Frame(String name) {
		super(name);
	}
	@Override
	public String getMyPrint() {
		return this.getSimpleClassName();
	}
}

/**
 * 
 * @Description: LOGO图片
 *
 */
public class Picture extends AbstractContainer {
	public Picture(String name) {
		super(name);
	}
	@Override
	public String getMyPrint() {
		return this.getSimpleClassName();
	}
}

/**
 * 
 * @Description: windowss
 *
 */
public class WinForm extends AbstractContainer {
	public WinForm(String name) {
		super(name);
	}
	@Override
	public String getMyPrint() {
		return this.getSimpleClassName();
	}
	
	
	public static void main(String[] args) {
		WinForm winForm = new WinForm("WINDOW窗口");
		Picture picture = new Picture("LOGO图片");
		Button loginButton = new Button("登录");
		Button registerButton = new Button("注册");
		Frame frame1 = new Frame("FRAME1");
		Label userNameLabel = new Label("用户名");
		TextBox textBox = new TextBox("文本框");
		Label passwdLabel = new Label("密码");
		PasswordBox passwordBox = new PasswordBox("密码框");
		TextBox rememberMeTextBox = new TextBox("记住用户名");
		LinkLabel linkLable = new LinkLabel("忘记密码");
		frame1.addComponent(userNameLabel, textBox, passwdLabel, passwordBox, rememberMeTextBox, linkLable);
		winForm.addComponent(picture, loginButton, registerButton, frame1);		
		winForm.print();
	}
	
}

结果：
print WinForm(WINDOW窗口)
print Picture(LOGO图片)
print Button(登录)
print Button(注册)
print Frame(FRAME1)
print Label(用户名)
print TextBox(文本框)
print Label(密码)
print PasswordBox(密码框)
print TextBox(记住用户名)
print LinkLabel(忘记密码)