Loading an Array from a File-Collection of common programming errors

I am working on an assignment with the following instructions,

Write a method that will load an array of floating point numbers from a file named floats.txt that you create, and then return that array. Assume the first value in the file holds the size of the array. Be sure to call your method.

I have created the following file with the title floats.txt

5
  4.3
  2.4
  4.2
  1.5
  7.3

I have never written a method that will return an array, nor have I ever created an array that reads from a file. Not asking anyone to write the program for me, by any means, but would appreciate some suggestions to get me started. I have written the method header as follows,

  public static double[] floatingFile() throws IOException {
  Scanner fin = new Scanner(new File"floats.txt");

Thanks.