Convert all the first letters in a statement to capital letters

private static String capitalizeFirst(String word) {
    return word.substring(0, 1).toUpperCase()
      + word.substring(1).toLowerCase();
}


public static String capitalizeAllFirstLetters(String address){

    Pattern pattern = Pattern.compile("^[A-Z,a-z]");
    String[] addressArray = address.split(" ");
    StringBuffer afterChangesAddress = new StringBuffer();

    for(int i=0;i<addressArray.length;i++){
         Matcher m = pattern.matcher(addressArray[i]);
          if(m.find()){
              afterChangesAddress.append(capitalizeFirst(addressArray[i])).append(" ");
         }else{
             afterChangesAddress.append(addressArray[i]).append(" ");
         }
    }
    return afterChangesAddress.substring(0, afterChangesAddress.lastIndexOf(" "));

 }




public static void main(String[] args) {


    String str = capitalizeAllFirstLetters("1180 seven seats dr, orlando, fl 3283");

    System.out.println(str);

}