package tutor23;
import java.util.Scanner;
public class Client {
public static void main(String[] args) {
Person p = new Person();
System.out.println("请选择出行方式：1、飞机 2、火车 3、自行车");
Scanner input=new Scanner(System.in);
int i=input.nextInt();
if(i==1) {
p.setStrategy(new AirplaneStrategy());
}else if(i==2) {
p.setStrategy(new TrainStrategy());
}else if(i==3) {
p.setStrategy(new BicycleStrategy());
}
p.travel();
}
}
class AirplaneStrategy implements TravelStrategy{
public void travel() {
System.out.println("乘坐飞机旅行");
}
}
class BicycleStrategy implements TravelStrategy{
public void travel() {
System.out.println("自行车游");
}
}
class Person {
//聚合策略类对象
private TravelStrategy strategy;
public void setStrategy(TravelStrategy strategy) {
this.strategy=strategy;
}
public void travel() {
strategy.travel();
}
}
class TrainStrategy implements TravelStrategy{
public void travel() {
System.out.println("乘火车旅行");
}
}
interface TravelStrategy {
public void travel();
}
