ฺBegin Array of Char

void setup() {
  char[]sentence  = {
    'p', 'r', 'o', 'g', 'r', 'a', 'm', 'm', 'i', 'n', 'g'
  };
  char word = 'g';
  println("The counting of letter "+(word)+" in sentense are "+ countting_char(word, sentence));
}
int countting_char(char word, char[] sentense) {
  int total=0;
  for (int i = 0; i<sentense.length; i++) {
    if (word == sentense[i]) {
      total = total + 1;
    }
  }
  return total;
}