week3 命题作业

public class Component{
    private String name;
    private List<Component> componentList = new ArrayList<>();
    
    public Component(String name){
        this.name = name;
    } 
    public final String getName(){
        return name;
    }
    public void addComponent(Component component){
    		if(component != null){
            componentList.add(component);
        }
    }
    public void display(){
        System.out.println("print " + name);
        componentList.forEach(component -> component.display());
    }
  
    public static void main(String[] args){
        Component winForm = new Component("WinForm(WINDOW窗口)");
        winForm.addComponent(new Component("Picture(LOGO图片)"));
        winForm.addComponent(new Component("Button(登陆)"));
        winForm.addComponent(new Component("Button(注册)"));
      
        Component frame = new Component("Frame(FRAME1)");
        frame.addComponent(new Component("TextBox(文本框)"));
        frame.addComponent(new Component("Lable(密码)"));
        frame.addComponent(new Component("PasswordBox(密码框)"));
        frame.addComponent(new Component("CheckBox(复选框)"));
        frame.addComponent(new Component("TextBox(记住用户名)"));
        frame.addComponent(new Component("LinkLable(忘记密码)"));
        
        winForm.addComponent(frame);
        winForm.display();
    }  
}