code: public void addChemComp(ChemComp comp){
  
  		dictionary.put(comp.getId(),comp);
  		String rep = comp.getPdbx_replaces();
  		if ( (rep != null) && ( ! rep.equals("?"))){
  			replaces.put(comp.getId(),rep);
  		}
  
  		String isrep = comp.getPdbx_replaced_by();
  		if ( (isrep != null) && ( ! isrep.equals("?"))){
  			isreplacedby.put(comp.getId(),isrep);
  		}
  	}
docs: add a new component to the dictionary
  
  @param comp