public abstract class Component {
    private String name;
    private String desc;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDesc() {
        return desc;
    }

    public void setDesc(String desc) {
        this.desc = desc;
    }

    public Component(String name, String desc) {
        this.name = name;
        this.desc = desc;
    }

    public void add(Component component){
        throw new UnsupportedOperationException();
    }

    public void remove(Component component){
        throw new UnsupportedOperationException();
    }

    public abstract void show();
}

定義服裝商鋪類

public class Store extends Component{

    List<Component> componentList = new ArrayList<Component>();

    public Store(String name, String desc){
        super(name, desc);
    }

    @Override
    public String getName() {
        return super.getName();
    }

    @Override
    public String getDesc() {
        return super.getDesc();
    }

    @Override
    public void add(Component component) {
        System.out.println("添加：" + getName());
        componentList.add(component);
    }

    @Override
    public void remove(Component component) {
        System.out.println("移除：" + getName());
        componentList.remove(component);
    }

    @Override
    public void show() {
        for (Component component : componentList) {
            System.out.println(component.getName());
            component.show();
        }
    }
}

定義服裝專賣店商鋪

public class BrandStore extends Component{

    List<Component> componentList = new ArrayList<Component>();

    public BrandStore(String name, String desc) {
        super(name, desc);
    }

    @Override
    public String getName() {
        return super.getName();
    }

    @Override
    public String getDesc() {
        return super.getDesc();
    }

    @Override
    public void add(Component component) {
        componentList.add(component);
    }

    @Override
    public void remove(Component component) {
        componentList.remove(component);
    }

    @Override
    public void show() {
        for (Component component : componentList) {
            System.out.println(component.getName());
            component.show();
        }
    }
}

定義運動裝

public class Sportswear extends Component{

    List<Component> componentList = new ArrayList<Component>();

    @Override
    public String getName() {
        return super.getName();
    }

    @Override
    public String getDesc() {
        return super.getDesc();
    }

    public Sportswear(String name, String desc) {
        super(name, desc);
    }

    @Override
    public void add(Component component) {
        componentList.add(component);
    }

    @Override
    public void remove(Component component) {
        componentList.remove(component);
    }

    @Override
    public void show() {
        for (Component component: componentList) {
            System.out.println(component.getName());
        }
    }
}

定義測試類

public class Test {
    public static void main(String[] args) {
        // 服裝店
        Component store = new Store("服裝店","服裝店");

        // 專賣店
        Component brandStore1 = new BrandStore("李寧服裝專賣店","李寧服裝專賣店");
        Component brandStore2 = new BrandStore("361服裝專賣店","361服裝專賣店");

        // 運動裝
        Component sportswear1 = new Sportswear("運動裝","運動裝");
        Component sportswear2 = new Sportswear("休閑裝","休閑裝");

        brandStore1.add(sportswear1);
        brandStore2.add(sportswear2);

        store.add(brandStore1);
        store.add(brandStore2);
        store.show();
    }
}

查看測試結(jié)果