Sorting algorithm: Bubble method with sentinel

ImprovedBubble.java

	public void sort(int[] elements) {
		int i = 1;
		boolean hasChange = true;
		
		while (hasChange && (i < elements.length)){
			hasChange = false;
			for (int j = elements.length - 1; j >= i; j--){
				if (elements[j-1] > elements[j]){
					int temp = elements[j];
					elements[j] = elements[j-1];
					elements[j-1] = temp;
					hasChange = true;
				}
			}
			i++;
		}
	}