Count the repeated character in a string !!

1. public class CountOfCharacter {
2. public static void main(String[] args) {
3. String s = "abcabcabc";
4. countOfRepeatedCharacter(s);
5. }
6. public static void countOfRepeatedCharacter(String s) {
7. char c[] = s.toCharArray();
8. Map<Character, Integer> map = new HashMap<Character, Integer>();
9. for (int i = 0; i < c.length; i++) {
10. if (map.containsKey(c[i])) {
11. map.put(c[i], map.get(c[i]) + 1);
12. } else {
13. map.put(c[i], 1);
14. }
15. }
16. System.out.println(map);
17. }
18. }

Output: 

{a=3, b=3, c=3}