Change Sets in Salesforce: We’ll be deploy our code from sandbox to production org by Using the Normal Salesforce tool Change sets. This feature is not available in your free developer edition.
Also Read: How To Deploy Code From Eclipse IDE?
Step:1
Click on Setup--> Deploy --> Deployment Connections.
Connect your Sandbox and Production orgs. You will do this only once!
Stpe:2
Setup -->Deploy --> Outbound Change Sets.
Now Add all necessary components(i.e custom objects,fields,links, buttons,apex classes,visualforce pages and triggers..etc) to a new change set you wish to Deploy, then upload to Production.
Step:3
Login to your production org. and Select Setup --> Deploy --> Inbound Change Sets.
Select the Inbound Change Set to Deploy ,Then click on Deploy Button.
Once you hit the Deploy button , you have to wait a few minutes for the changes to go Production.
That's it!
Source: Salesforce Help
