Createdcenter datacenter = createDC(dc, Integer.toString(uid));

Brokers are participating in auction on behalf of users. Hence broker objects are created

broker = new CreatedBroker(name, userid);

An entity known as Auctioner is created to conduct auction in single or multiple rounds

Auctioneer ac = new Auctioneer();

ac.startAuction();

ac.receiveResourceAvailabilityDC();

ac.receiveResoucreRequestBroker();

Brokers are submitting the resource request and bid to the auctioneer

broker.submitResourceRequest();

Auctioneer evaluates the bids of users

ac..evaluateBids();

Auctioneer determines the winner of the auction

ac.determineWinner();

ac.updateRound();

Datacenter allocates the required resource to the winner

vmlist = createVM(uid, dc, brokerId);

broker.submitVmList(vmlist);

newList = createCloudlet();

broker.submitCloudletList(newList);

lastClock = CloudSim.startSimulation();