单例模式和组合模式实例

/** * 抽象基类 */public abstract class BaseCommpnt {    protected String name;    public BaseCommpnt(String name) {        this.name = name;    }    public abstract void print();}

public class Continer extends BaseCommpnt {public class Continer extends BaseCommpnt {    private List<BaseCommpnt> subNodes = new ArrayList<>();
    public Continer(String path) {        super(path);    }    @Override    public void print() {        System.out.println("容器:"+super.name+"");        for (BaseCommpnt subNode : subNodes) {            subNode.print();        }    }    /**     * 添加组件     * @param c     */    public void addCommont(BaseCommpnt c){        subNodes.add(c);    }}

public class  Commpont extends BaseCommpnt {    public Commpont(String name) {        super(name);    }    @Override    public void print() {       System.out.println("组件:"+super.name+"");    }}

 public static void main(String[] args) {
        Continer form = new Continer("Windows 窗口");        Commpont logo = new Commpont("LOGO图片");        Commpont loginButton = new Commpont("登陆");        Commpont regeistButton = new Commpont("注册");        form.addCommont(logo);        form.addCommont(loginButton);        form.addCommont(regeistButton);
        Continer  iframe= new Continer("FRAME1");
        Continer textbox = new Continer("文本框");        Commpont userLabel = new Commpont("标签－用户名");        Commpont pwdLabel = new Commpont("标签－密码");        Commpont userInput = new Commpont("用户名－input");        Commpont pwdInput = new Commpont("密码－input");
        textbox.addCommont(userLabel);        textbox.addCommont(pwdLabel);        textbox.addCommont(userInput);        textbox.addCommont(pwdInput);
        Commpont checkbox = new Commpont("checkbox");        Commpont label_1 = new Commpont("label");        iframe.addCommont(textbox);        iframe.addCommont(checkbox);        iframe.addCommont(label_1);        form.addCommont(iframe);
        form.print();
    }

容器:Windows 窗口组件:LOGO图片组件:登陆组件:注册容器:FRAME1容器:文本框组件:标签－用户名组件:标签－密码组件:用户名－input组件:密码－input组件:checkbox组件:label