Week3-Homework

public abstract class Window {
	protected String name;
	public Window(String name) {
		this.name = name;
	}
	public abstract boolean isRootNode();
	public abstract void print();
}

public class Components extends Window {
	private String name;
	public Components(String name) {
		super(name);
		this.name = name;
	}
	@Override
	public boolean isRootNode() {
		return false;
	}
	@Override
	public void print() {
		System.out.println(name);
	}
}

public class Frame extends Window {
	private String name;
	private List<Window> windows;
	public Frame(String name,List<Window> windows) {
		super(name);
		this.name = name;
		this.windows = windows;
	}
	@Override
	public boolean isRootNode() {
		return true;
	}
	@Override
	public void print() {
		for (Window win : windows) {
			if(win.isRootNode()){
				System.out.println(win.name);
			}
			win.print();
		}
	}
}

public static void main(String[] args) {
		//二级子节点
		Components c1 = new Components("Picture");
		Components c2 = new Components("Button注册");
		Components c3 = new Components("Button登录");
		//一级根节点
		List<Window> list = new ArrayList<>();
		list.add(c1);
		list.add(c2);
		list.add(c3);
		//三级子节点
		Components c5 = new Components("Label用户名");
		Components c6 = new Components("TextBox");
		Components c7 = new Components("Label密码");
		Components c8 = new Components("PasswordBox");
		Components c9 = new Components("CheckBox");
		Components c10 = new Components("TextBox");
		Components c11 = new Components("LinkLabel");
		List<Window> list1 = new ArrayList<>();
		list1.add(c5);
		list1.add(c6);
		list1.add(c7);
		list1.add(c8);
		list1.add(c9);
		list1.add(c10);
		list1.add(c11);
		//二级根节点
		Frame f = new Frame("Frame", list1);
		list.add(f);
		Frame f1 = new Frame("WinFrame",list);
		f1.print();
	}