使用文本文件存储和显示多个用户的信息

Question

I am writing a program which allows the user to play a slot machine, then stores their name and score to a text file. At the beginning of the program and end of the slot machine game, there is a menu of three options a user can choose from:

1. To play a new game
2. View Scores
3. Exit the game.

When a user presses 2, the program should show the scores of each game, not just the game just played; so, whenever a user plays, their information should be appended to an already existing file, score.txt .

My problem is that whenever I try to read from this file, it only ever displays scores from the game just played. Here is the code that runs after the game ends:

System.out.println("Game over! Your score has been written to scores.txt" + name + "!"); 
System.out.print("Actions:\n");
System.out.println("1. Start a new game\n" + 
    "2. View scores\n" + 
    "3. Exit ");

System.out.println("Please select an action: ");
action = keyboard.nextInt();

while (action == 2) {
    File myFile = new File("score.txt");
    Scanner inputFile = new Scanner(myFile);

    if (myFile.exists()) {
        while (inputFile.hasNext()) {
            name = inputFile.nextLine();
            System.out.println("Name\n------\n" + name + "\n");
            total = inputFile.nextDouble();
            System.out.printf("Scores\n------\n$%.2f\n", total);
            System.out.println();   
        }
    } else
        System.out.println("There are no scores to display at this time.");

    System.out.print("Actions:\n");
    System.out.println("1. Start a new game\n" + 
            "2. View scorse\n" + 
            "3. Exit ");

    System.out.println("Please select an action: ");
    action = keyboard.nextInt();
}

Answer 1

If you are using a FileWriter make sure you pass true for the second argument to append.

try {
    PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("score.txt", true)));
    out.println(score);
    out.close();
} catch (IOException e) {
    //deal with the exception
}