code: public void no(int existingNodeID, int newNodeID, String newQuestAns, Decision decision) {
          // If no root node do nothing
  
          if (rootNode == null) {
              System.out.println("ERROR: No root node!");
              return;
          }
  
          // Search tree
  
          if (searchTreeAndAddNoNode(rootNode,existingNodeID,newNodeID,newQuestAns, decision)) {
              //System.out.println("Added node " + newNodeID +
               //       " onto \"no\" branch of node " + existingNodeID);
          }
          else System.out.println("Node " + existingNodeID + " not found");
      }
docs: /* ADD NO NODE