Odd IOException in medieval serialization save() method

Computer Science
1

everytime I run the following bit of code below it always catches an IOException even though everything should be working properly

private void save() {
    // Add save functionality here
    String fileName = player.getName() + ".svr";
    try {
      FileOutputStream userSaveFile = new FileOutputStream(fileName);
      ObjectOutputStream playerSaver = new ObjectOutputStream(userSaveFile);
      playerSaver.writeObject(player);
    } catch (IOException e) {
      System.out.println("There was an error saving your game, your file might not be available the next time you go to load a game.");
    }
2

Try printing e.getMessage() in your catch block. This will tell you what the actual error is instead of just printing the generic message that is there now. The stack trace may prove helpful too.

3

It’s possible that the IOException is being thrown due to a file permission issue or an invalid file path. Here are a few things you can try to resolve the issue:

  1. Check that the file path is correct and that you have write permissions for the directory where the file is being saved.
  2. Wrap the FileOutputStream and ObjectOutputStream creation statements in a try-with-resources block. This will automatically close the streams after they are used, which could be causing the IOException.
String fileName = player.getName() + ".svr";
try (FileOutputStream userSaveFile = new FileOutputStream(fileName);
     ObjectOutputStream playerSaver = new ObjectOutputStream(userSaveFile)) {
    playerSaver.writeObject(player);
} catch (IOException e) {
    System.out.println("There was an error saving your game, your file might not be available the next time you go to load a game.");
}
  1. Check if any other program or process has the file open and is preventing your program from writing to it. If that is the case, you may need to close the program or process or choose a different file name or location.
  2. Try using a different file output method, such as FileWriter or BufferedWriter, to see if it resolves the issue. For example:
String fileName = player.getName() + ".svr";
try (BufferedWriter writer = new BufferedWriter(new FileWriter(fileName))) {
    writer.write(player.toString()); // assuming player has a toString method
} catch (IOException e) {
    System.out.println("There was an error saving your game, your file might not be available the next time you go to load a game.");
}

If none of these solutions work, please provide more details about the error message you are receiving so that i can help you further! :slight_smile: