Tutorial - The Gradle wrapper deep explanation.
These days Gradle become one of the most popular build and dependency management tools.
So what does Gradle do? Sort of two things. Builds the deployment artifacts themselves, and it manages the dependencies. So when we build an application, the actual amount of code that we write ourselves may be very small, but we're using lots of code that we're leveraging from existing libraries and projects. And that concept is referred to as a dependency. And that's the other big feature of Gradle, that it will help us manage these dependencies.
You can access it on:
http://www.gradleware.com/registered/screencasts/the-gradle-wrapper/