purchase.java

来自「程序设计模式java入门源码大全」· Java 代码 · 共 33 行

import java.io.*;

public class Purchase
{
  Mediator mediator;
  String response = "n";

  public Purchase(Mediator m)
  {
    mediator = m;
  }

  public void go()
  {
    System.out.print(
      "Buy the item now? [y/n]? ");
    BufferedReader reader = new 
      BufferedReader(new InputStreamReader(System.in));

    try{
      response = reader.readLine();
    } catch (IOException e){ 
      System.err.println("Error");
    }

    if (response.equals("y")){
      System.out.println("Thanks for your purchase.");
    }

    mediator.handle("purchase.exit");
  }
}