count the number of occurrences of a character in a string java

                                    public class StringNumberOfOccurenceLetter {

    private static int countOccurences(String word, char character){

        int count = 0;
        for (int i = 0; i < word.length() ; i++) {
            if (word.charAt(i)==character){
                count++;
            }
        }
        return count;

    }
         public static void main(String[] args) {


        int count = countOccurences("dddssad", 'a');
    }


}

                                    public class CountStringOccurence {
public static void main(String[] args) {

int count= countOccurences("aaassssddadad",'s');
System.out.println(count);

}

private static int countOccurences(String word, char character){
  
  int count = 0;
  for(int i = 0; i < word.length(); i++){
    
    if(word.chartAt(i) == character){
      
      count++; } 
                 }
      return count;
}
}

                                    public static int count(String str, String target) {
    return (str.length() - str.replace(target, "").length()) / target.length();
}

                                    String line = "apples.oranges.bananas";
int count = line.length() - line.replace(".", "").length();
System.out.println(count);//displays 2