public static boolean isAlphaChar(String text,int index){
  char c=text.charAt(index);
  return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9');
}

public static boolean isAlphaChar ( String text , int index ) { char c = text . charAt ( index ) ; return ( c >= 'a' && c <= 'z' ) || ( c >= 'A' && c <= 'Z' ) || ( c >= '0' && c <= '9' ) ; }
checks whether the char is part of a word . < p > rfc assert a word cannot be splitted ( even if the length is greater than the maximum length ) .
