savefile.java

This book code procedure according to the chapter arrangement, the 1st chapter of example under "1"

package com.example.operate;
/**
 * <p>标题: 保存文件</p>
 * <p>描述: 保存当前文件命令，实现了Command接口。</p>
 * <p>版权: Copyright (c) 2005</p>
 * <p>公司: </p>
 * @作者 杜江
 * @版本 1.0
 */
public class SaveFile implements Command {
  public void execute() {
    //do save file command
    System.out.println("save file");
  }
}