第三周命题作业

public interface Component {
	void print();
	
	String getName();
	
	void setName(String name);
}
import java.util.List;
public interface ComponentRegistry {
	
	void addComponent(Component component);
	
	void removeComponent(Component component);
	boolean exists(Component component);
	
	List<Component> getComponents();
	
}
public class GenericComponent implements Component {
	private String name;
	
	
	@Override
	public void print() {
		System.out.println("Print " + getName());
	}
	
	@Override
	public String getName() {
		return this.name;
	}
	
	@Override
	public void setName(String name) {
		this.name = name;
	}
	
	
}
import java.util.ArrayList;
import java.util.List;
public class ContainerComponent extends GenericComponent implements ComponentRegistry{
	
	private List<Component> components;
	
	public ContainerComponent() {
		
		components = new ArrayList<>();
	}
	@Override
	public void addComponent(Component component) {
		
		this.components.add(component);
	}
	@Override
	public void removeComponent(Component component) {
		
		this.components.remove(component);
	}
	@Override
	public boolean exists(Component component) {
		return this.components.contains(component);
	}
	@Override
	public List<Component> getComponents() {
		return this.components;
	}
}
public class Frame extends ContainerComponent{
	public Frame() {
		setName("Frame");
	}
}
public class Label extends GenericComponent{
	public Label() {
		setName("Label");
	}
}
public class LinkLabel extends GenericComponent{
	public LinkLabel() {
		setName("LinkLabel");
	}
}
public class PasswordBox extends GenericComponent{
	public PasswordBox() {
		setName("PasswordBox");
	}
}
public class Picture extends GenericComponent{
	public Picture() {
		setName("Picture");
	}
}
public class TextBox extends GenericComponent{
	public TextBox() {
		setName("TextBox");
	}
}
public class Window extends ContainerComponent{
	public Window() {
		setName("Window");
	}
}
public class CheckBox extends GenericComponent{
	public CheckBox() {
		setName("CheckBox");
	}
}
public class Button extends GenericComponent{
	public Button() {
		setName("Button");
	}
}
import java.util.LinkedList;
import java.util.Queue;
public class ComponentTest {
	public static void main(String[] args) {
		ContainerComponent window = new Window();
		
		window.addComponent(new Picture());
		window.addComponent(new Button());
		window.addComponent(new Button());
		
		ContainerComponent frame = new Frame();
		
		window.addComponent(frame);
		frame.addComponent(new Label());
		frame.addComponent(new TextBox());
		frame.addComponent(new Label());
		frame.addComponent(new PasswordBox());
		frame.addComponent(new CheckBox());
		
		frame.addComponent(new TextBox());
		frame.addComponent(new LinkLabel());
		
		
		print(window);
	}
	private static void print(ContainerComponent window) {
		window.print();
		
		Queue<Component> queue = new LinkedList<Component>();
		
		queue.offer(window);
		
		while(!queue.isEmpty()){
			
			Component currentComponent = queue.poll();
			
			if(currentComponent instanceof ContainerComponent) {
				
				for(Component component : ((ContainerComponent) currentComponent).getComponents()) {
					
					component.print();
					
					queue.offer(component);
				}
			}
		}
	}