how to count occurrences of character in a string in java code example

Example 1: number of occurence string in 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');
    }


}

Example 2: check how many times a character appears in a string java

str.chars().filter(num -> num == '$').count()