数据在输出流期间被删除

Question

所以我正在编写一个程序，它将接受游戏名称，发布者和价格（作为字符串）返回到已经包含一些记录的文件中。但是，当我运行程序时，它会删除以前的记录。

      //open the output stream
      FileWriter writeFile = new FileWriter(inFile);
      BufferedWriter lineWriter = new BufferedWriter(writeFile);
      PrintWriter printLine = new PrintWriter(lineWriter);

if (menuItem == ADD_GAME)
{    //Get game
      System.out.print("Enter name of game:  ");
      gameName = Keyboard.readString();

      //get publisher
      System.out.print("Enter name of publisher:  ");
      publisherName = Keyboard.readString();

      //get price of game
      System.out.print("Enter game price:  ");
      gamePrice = Keyboard.readString();

      //add game to games
      createdGame.addGame(gameName, publisherName, gamePrice);

      //add game to file record
      outLine = gameName + " " + publisherName + " " + gamePrice;
      printLine.println(outLine);
}

Answer 1

您正在打开文件以进行覆盖而不是附加。您想将FileWriter初始化更改为：

FileWriter writeFile = new FileWriter(inFile, true);