SharePoint 2013 - Hello World App

Hello World!!! Lets create a SharePoint 2013 App.
Following are the quick steps to create a SharePoint Hosted App using Visual Studio 2013:

1. Launch Visual Studio 2013.
2. Select File -> New Project
3. Select App for SharePoint 2013 and provide name and location of the project
   
4. Provide url of the developer site (Site collection created by using Developer Site template) and select SharePoint Hosted App in hosting option then select Finish.
   
5. Hit Start from the tool bar, it will compile and deploy the app to your developer site.