public void add(String keyword,byte id){
  int key=getStringMapKey(keyword);
  map[key]=new Keyword(keyword.toCharArray(),id,map[key]);
}

public void add ( String keyword , byte id ) { int key = getStringMapKey ( keyword ) ; map [ key ] = new Keyword ( keyword . toCharArray ( ) , id , map [ key ] ) ; }
adds a key - value mapping .
