public void printCycle(int cycleIndex, Main m){
    int[] temp = cycles.get(cycleIndex);
    
    System.out.printf("\t Cycle %d:\n", cycleIndex);
    for(int i=0; i<temp.length; i++){
    
      if(graphNodes.get(temp[i]).getType()== _REACTION_){
        System.out.printf("\t");
        m.getReactions().get( graphNodes.get(temp[i]).getID() ).printReaction();
      
      }
    
    }
    System.out.printf("\n");
  
  }