week3 作业 & 手撕单例模式

public class Composite {


    public static void main(String[] args) {
        Tables windows1 = new Tables("WinForm(WINDOW 窗口)");
        Tables frmaes = new Tables("Frame(FRAME1)");

        Data logo = new Data("Picture(LOGO 图片)");
        Data login = new Data("Button(登录)");
        Data logon = new Data("Button(注册)");
        windows1.addNode(logo);
        windows1.addNode(login);
        windows1.addNode(logon);
        windows1.addNode(frmaes);

        Data username = new Data("Label(用户名)");
        Data textBox = new Data("TextBox(文本框)");
        Data passwd = new Data("Label(密码)");
        Data passwdBox = new Data("PasswordBox(密码框)");
        Data checkBox = new Data("CheckBox(复选框)");
        Data rememberUsername = new Data("TextBox(记住用户名)");
        Data forgetPasswd = new Data("LinkLabel(忘记密码)");
        frmaes.addNode(username);
        frmaes.addNode(textBox);
        frmaes.addNode(passwd);
        frmaes.addNode(passwdBox);
        frmaes.addNode(checkBox);
        frmaes.addNode(rememberUsername);
        frmaes.addNode(forgetPasswd);
        windows1.print();
    }

}

interface DrawNode{
    public void print();
}

class Tables implements DrawNode{
    private String info;
    private List<DrawNode> nodes = new ArrayList<>();

    public Tables(String info) {
        this.info = info;
    }

    protected void addNode(DrawNode node){
        nodes.add(node);
    }

    @Override
    public void print() {
        System.out.println("print "+info);
        nodes.forEach(data -> data.print());
    }
}


class Data  implements DrawNode{
    private String info;

    public Data(String info) {
        this.info = info;
    }

    @Override
    public void print() {
        System.out.println("print "+info);
    }
}