public?interface?Transport?{
????//選擇的交通方式
????public?void?traffic();
}

public?class?Train?implements?Transport{

????@Override
????public?void?traffic()?{
????????System.out.println("您好，您選擇了火車作為出行方式，我將竭誠為您服務");
????}
}

public?class?Airplane?implements??Transport{
????@Override
????public?void?traffic()?{
????????System.out.println("您好，您選擇了飛機作為出行方式，我將竭誠為您服務");
????}
}

public?class?Bus?implements?Transport{
????@Override
????public?void?traffic()?{
????????System.out.println("您好，您選擇了巴士作為出行方式，我將竭誠為您服務");
????}
}

package?com.imocc.objectproject.sample.system;

public?class?CustomerSrevice?{
????public??Transport?contact?(int?distance){
????????if(distance>1000){
????????????return?new?Airplane();
????????}else?if(distance<1000?&&distance?>300){
???????????return??new?Train();
????????}else?{
????????????return??new?Bus();
????????}
????}
????public?static?void?main(String[]?args)?{
????????Transport?transport?=?new?Train();
????????transport.traffic();
????????Transport?transport1?=?new?Airplane();
????????transport1.traffic();
????????Transport?transport2?=?new?Bus();
????????transport2.traffic();
????????CustomerSrevice?cs?=?new?CustomerSrevice();
????????Transport?transport3?=cs.contact(1200);
????????transport3.traffic();
????}
}

public?class?Customer?{
????public?static?void?main(String[]?args)?{
????????System.out.print("請您輸入出發地到目的地的距離為：");
????????int?distancer?=new?Scanner(System.in).nextInt();
????????CustomerSrevice?customerSrevice?=?new?CustomerSrevice();
????????Transport?transport?=customerSrevice.contact(1200);
????????transport.traffic();
????}
}