public interface Component {
    /**
     * 所有组件都需要组件打印的接口
     */
    void print();
}

/**
 * 定义组件的基本元素及输出流程
 */
public abstract class BaseComponent implements Component {
    private String name;
    public BaseComponent(String name) {
        this.name = name;
    }
    @Override
    public void print() {
        StringBuilder s = new StringBuilder();
        s.append("print ").append(getType()).append("(").append(name).append(")");
        System.out.println(s);
    }
    public abstract String getType();
}

public class Picture extends BaseComponent {
    public Picture(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "Picture";
    }
}

public class Button extends BaseComponent {
    public Button(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "Button";
    }
}

public class Label extends BaseComponent {
    public Label(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "Label";
    }
}

public class TextBox extends BaseComponent {
    public TextBox(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "TextBox";
    }
}

public class PasswordBox extends BaseComponent {
    public PasswordBox(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "PasswordBox";
    }
}

public class CheckBox extends BaseComponent {
    public CheckBox(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "CheckBox";
    }
}

public class LinkLabel extends BaseComponent{
    public LinkLabel(String name) {
        super(name);
    }
    @Override
    public String getType() {
        return "LinkLabel";
    }
}

public abstract class Container extends BaseComponent {
    /**
     * 容器中的子组件
     */
    private List<Component> subComponents;
    public Container(String name, List<Component> subComponents) {
        super(name);
        this.subComponents = subComponents;
    }
    @Override
    public void print() {
        super.print();
        if (subComponents == null || subComponents.isEmpty()) {
            return;
        }
        for (int i = 0; i < subComponents.size(); i++) {
            subComponents.get(i).print();
        }
    }
}

import java.util.List;
public class WinForm extends Container {
    public WinForm(String name, List<Component> subComponents) {
        super(name, subComponents);
    }
    @Override
    public String getType() {
        return "WinForm";
    }
}

import java.util.List;
public class Frame extends Container {
    public Frame(String name, List<Component> subComponents) {
        super(name, subComponents);
    }
    @Override
    public String getType() {
        return "Frame";
    }
}

import java.util.ArrayList;
import java.util.List;
public class Main {
    public static void main(String[] args) {
        List<Component> frameSubComponents = new ArrayList();
        frameSubComponents.add(new Label("用户名"));
        frameSubComponents.add(new TextBox("文本框"));
        frameSubComponents.add(new Label("密码框"));
        frameSubComponents.add(new PasswordBox("密码"));
        frameSubComponents.add(new CheckBox("复选框"));
        frameSubComponents.add(new TextBox("记住用户名"));
        frameSubComponents.add(new LinkLabel("忘记密码"));
        List<Component> windowSubComponents = new ArrayList();
        windowSubComponents.add(new Picture("LOGO图片"));
        windowSubComponents.add(new Button("登录"));
        windowSubComponents.add(new Button("注册"));
        windowSubComponents.add(new Frame("FRAME1", frameSubComponents));
        Component window = new WinForm("WINDOW窗口", windowSubComponents);
        window.print();
    }
}