class sunflower extends plant{ △ 8 public void show( ){ 9 system.out.println("向日葵"); 10 } 11}12 13 class nut extends plant{ 14 public void show( ){ 15 system.out.println("坚果墙"); 16 17}18 19 class pea extends plant{ 209 public void show( ){ 21 system.out.println("豌豆射手"); 22 } 23 }24 25 class plantfactory{ 26 public static plant creat(string s){ 27 if("向日葵".equalsignorecase(s)){ 28 return new sunflower(); 29 }else if("坚果墙".equalsignorecase(s)){ 30 return new nut(); 31 }else if("豌豆射手".