public static String toProperCase(String s) {
		String firstLetter;

		s = s.trim();

		firstLetter = s.substring(0, 1).toUpperCase();

		return firstLetter + s.substring(1).toLowerCase();
	}


	// Double array length and save data(for Participant array)

	public Event[] doubleArrayLength(Event[] a) {

		Event[] newArray;

		// Create new array with double length
		newArray = new Event[a.length * 2];

		// Transfer all data to new array
		for (int i = 0; i < a.length; i++) {
			if (a[i] != null)
				newArray[i] = a[i];
		}

		return newArray;

	}

	public static boolean validateEmptyString(String input) {
		if (input.equals("") || input.trim().length() == 0) {
			System.out.println("Value can't be empy!");
			return false;
		} else
			return true;
	}

	public static boolean validateEmptyInt(Integer input) {
		if (input == null) {
			System.out.println("Value can't be empy!");
			return false;
		} else
			return true;
	}


	// Add one row and save data (for int matrix)

	public static int[][] incrementMatrixRowLength(int[][] a) {

		int[][] newArray;

		// Create new array with double length
		newArray = new int[a.length + 1][4];

		// Transfer all data to new array
		for (int i = 0; i < a.length; i++) {
			for (int j = 0; j < a[0].length; j++) {
				newArray[i][j] = a[i][j];
			}
		}

		return newArray;

	}