# 전략

public interface Action {
    void move();
}

public class Walking implements Action {
  @Override
  public void move() {
    System.out.println("Walking road");
  }
}

public class Running implements Action {
  @Override
  public void move() {
    System.out.println("Running road");
  }
}

public class Human {
  void start(Action action) {
    System.out.println("Start Action");
    action.move();
    System.out.println("End Action");
  }
}

public class Client {
  public static void main (String[] args) {
    Human human = new Human();

    Walking walk = new Walking();
    human.start(walk);

    Running run = new Running();
    human.start(run);
  }
}