Java 广告牌类

package Example2;public class Test {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubAdvertisementBoard board=new AdvertisementBoard ();board.show(new BlackLandCorp());board.show(new WhiteCloudCorp());}}public class AdvertisementBoard {public void show(Advertisement adver){System.out.println(adver.getCorpName()+"的广告词如下：");adver.showAdvertisement();}}public class BlackLandCorp implements Advertisement{public void showAdvertisement(){System.out.println("*******************");System.out.printf("劳动是爹\n土地是妈\n");System.out.println("*******************");}public String getCorpName(){return "黑土集团";}}public interface Advertisement {public void showAdvertisement();public String getCorpName();}public class WhiteCloudCorp implements Advertisement{public void showAdvertisement(){System.out.println("@@@@@@@@@@@@@@@@@@");System.out.printf("飞机中的战斗机，oh yeah\n");System.out.println("@@@@@@@@@@@@@@@@@@");}public String getCorpName(){return "白云有限公司";}}