Read in array from text file

Question

hello,
i have managed to save the content of a 2d array to a text file, but i am a bit stuck reading it back and placing the data back into a 2d array.
i have a Scanner object that can read the the integers from the file using nextInt(), but i am not sure how to place them back into the 2d array.
i need something like:
        Scanner inputStream = null;
        try{
        inputStream = new Scanner(new FileInputStream("out.txt"));
        catch(FileNotFoundException e)
            System.out.println("out.txt not found");
            e.printStackTrace();
        for(int i = 0; i < 13; i++){
            for(int j = 0; j < 13; j++)
                matrix[i][j] = inputStream.nextInt();
        inputStream.close();but it doesnt like the for loop.
thanks

Answer 1

morris7 wrote:
but it doesnt like the for loop.1) You'll have to be much more specific than this if you want "helpful" help.
2) You may need to call inputStream.nextLine() after the inner for loop but inside the outer for loop.
3) Always, always use curly brackets "{" and "}" to enclose your for loops, while loops, if and else statements. They may seem like extra work if you are only processing one line, but they will save your life someday. Always.
4) Consider closing your scanner in a finally block.