week03 homework

inferface Window {
	void print();
}
inferface Container {
    void add();
}
public class Frame implement Window, Container {
    private List<Container> containers = new ArrayList<>();
	public Frame(String id) {
		super(id);
	}
	@Override
	public void print() {
		System.out.println(id);
	}
	@Override
	public void add(Container container) {
		containers.add(container);
	}
}
public class Test {
	public static void main(String[] args) {
        Frame winForm = new Frame();
        Frame picture = new Frame();
        Frame registerButton = new Frame();
        Frame loginButton = new Frame();
        Frame frame = new Frame();
        Frame usernameLable = new Frame();
        Frame textBox = new Frame();
        Frame passwordLable = new Frame();
        Frame checkBox = new Frame();
        Frame textBox2 = new Frame();
        Frame linkLabel = new Frame();
        frame.add(usernameLable);
        frame.add(passwordLable);
        frome.add(checkBox);
        frame.add(linkLabel);
        frame.add(textBox2);
        window.add(picture);
        window.add(frame);
        window.add(loginButton);
        window.add(registerButton);
    }
}