Null when splitting a string

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I need to create my own sort method for an array, and I begin my splitting the text file into an array filled with the words. The file format is: an integer n, followed by n words.

Here's an example: 4 hello hello world hello

However, my array prints: [null4, hello, hello, world, hello]

WHY! I don't understand why there is a null before. And, if I remove the number 4 (which plays no role in my program at the moment) I get: [nullhello, hello, world, hello]

Can you please help me remove this null? Thanks in advance!

public static void main(String[] args) throws FileNotFoundException {
    filePath = "***TEXT FILE HERE***";

    fileInput = new Scanner(new File(filePath));
    convertFile(fileInput);
}

public static void convertFile(Scanner file) {

    String line;

    while (fileInput.hasNextLine()) {
        line = fileInput.nextLine();
        fileData = fileData + line;
    }

    String[] array = createArray(fileData);
    System.out.println(Arrays.toString(array));
}

public static String[] createArray(String data) {
    String[] dataArray = data.split("\\s+");

    return dataArray;
}

asked 17 secs ago

Braulio Diaz

1

Null when splitting a string