Reading double values from a file

Question

I\'m trying to read some numbers (double) from a file and store them in an ArrayList and an array (yes, I need both) with the code below:

try {
    Scanner s         


        

Answer 1

I tried reducing the code down to only test the Scanner by itself. The following code works with your data file:

public static void main(String[] args) {
    Scanner scan;
    File file = new File("resources\\scannertester\\data.txt");
    try {
        scan = new Scanner(file);

        while(scan.hasNextDouble())
        {
            System.out.println( scan.nextDouble() );
        }

    } catch (FileNotFoundException e1) {
            e1.printStackTrace();
    }

}

I got the following (expected) output:

0.0
0.0
0.023
0.023
0.05
0.05
0.2
0.2
0.5
0.5
0.8
0.8
0.95
0.95
0.977
0.977
1.0
1.0

Try this to make sure you're referencing the correct file.