title: How to enable Jack (Java Android Compiler Kit) in android studio
body: <p>I am updated my <a href="http://developer.android.com/sdk/index.html" rel="nofollow noreferrer">androidstudio 2.1</a> stable.As per <a href="http://android-developers.blogspot.in/2016/04/android-studio-21-supports-android-n.html" rel="nofollow noreferrer">Android Studio 2.1 supports Android N Developer Preview</a>
  Android studio 2.1 support <a href="https://source.android.com/source/jack.html" rel="nofollow noreferrer">Jack (Java Android Compiler Kit)</a> compiler .</p>
  
  <p>How to add or use Jack in android studio?</p>
  
  <p><strong>NOTE:</strong></p>
  
  <blockquote>
    <p>The Jack toolchain is deprecated, as per <a href="https://android-developers.googleblog.com/2017/03/future-of-java-8-language-feature.html" rel="nofollow noreferrer">Java 8 Language Feature Support on Android</a>. However, you may continue to use it to <a href="https://developer.android.com/preview/j8-jack.html" rel="nofollow noreferrer">enable Java 8 language features</a> until the replacement is available.</p>
    
    <p>As of this March 14, 2017 announcement, the Jack toolchain is deprecated. Jack was the default Android build toolchain for Android 6.0–8.1.</p>
  </blockquote>
  
  <p><a href="https://source.android.com/source/jack" rel="nofollow noreferrer">https://source.android.com/source/jack</a></p>