[staykovmarin]

You can read the file backwards, until you find a number that is a normal Double num:

Code:

		BufferedReader reader = new BufferedReader(new FileReader(
					"cashTest"));
		String s;
		StringBuilder tmp = new StringBuilder();
		while ((s = reader.readLine()) != null) {
			tmp.append(s.toLowerCase() + "\n");
		}
		double num = 0.0;
		String[] arr = tmp.toString().split("\n");
          
                // read the array backwards, starting with the last line
		for (int i = arr.length - 1; i >= 0; i--) {
			try {
				num = Double.valueOf(arr[i]);
                                // if the number cannot be converted to a Double, it would mean that it is one of the other lines
                                // if it can be converted, then break out of the for loop
				break;
			} catch (NumberFormatException e) {
				// just for a test mess
				System.out.println("Not on this line");
			}
		}

                // just to make sure that the value we got was greater than 0
		if (num > 0)
		        System.out.println(num);
                else
                        System.out.println("No customer records found. A possible error occured");