白云黑土

package diliuzhang;public class Advertisementboard {//创建广告牌public void show(Advertisment adver){System.out.println(adver.getcorpname()+"的广告词如下");adver.showAdvertisment();}}package diliuzhang;public abstract class Advertisment {    public void show();    public String getcorpname();    }package diliuzhang;public class Blacklandcorp implements Advertisment{public void show(){System.out.println("&&&&&&&&&&&&&");System.out.println("劳动是爹！土地是妈！");System.out.println("&&&&&&&&&&&&&");}public String getcorpname(){return "黑土集团";}}package diliuzhang;public class Test {public static void main(String[] args) {// TODO Auto-generated method stubAdvertisementboard board=new Advertisementboard();board.show(new Blacklandcorp());board.show(new Whitecloudcorp());}}package diliuzhang;public class Whitecloudcorp implements Advertisment{public void show(){System.out.println("@@@@@@@@@@@@@");System.out.println("飞机中的战斗机，爱yes！");System.out.println("@@@@@@@@@@@@@");}public String getcorpname(){return "白云公司";}}