counting the number of characters in a string java

1public static void main(String[] args) {
2		int wordCount = 0;
3		String word = "hill";
4		for (char letter = 'a'; letter <= 'z'; letter++) {
5			for (int i = 0; i < word.length(); i++) {
6				if (word.charAt(i) == letter) {
7					wordCount++;
8				}
9			}
10			if (wordCount > 0) {
11				System.out.println(letter + "=" + wordCount);
12				wordCount = 0;
13			}
14		}
15	}