title: Android finish() method
body: <p>I previously works in c# dotnet development, there is <code>Application.exit()</code> type method, which instantly close the app and release the memory.</p>
  
  <p>I find that android "finish()" method which was supposed to do that</p>
  
  <p>but it not doing that, it continue the app and not releasing the memory.
  How i can exit my application, so all thread and memory will be released ?</p>