title: What is Maven repository in Android Studio?
body: <p>Can anyone explain clairly what is <code>Maven repository</code> in Android Studio ? I try to understand it but I don't find better explainations.
  Last time I needed to add some dependencies in my project and they didn't work untill I added a link to <code>Maven and Jcenter</code> in my <code>build.gradle</code> file.</p>
  
  <p>It worked parfectly but my question is just to know What is exactly maven and Jcenter in Android Studio ? 
  Thanks in advance with your answers.</p>