- Making http requests using okhttp
- getSupportFragmentManager (FragmentActivity)
- scheduleAtFixedRate (ScheduledExecutorService)
- findViewById (Activity)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- URL (java.net)
A Uniform Resource Locator that identifies the location of an Internet resource
as specified by RFC
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- ConcurrentHashMap (java.util.concurrent)
A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
version is based on or
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- Top 12 Jupyter Notebook extensions