- Making http requests using okhttp
- setContentView (Activity)
- getApplicationContext (Context)
- setRequestProperty (URLConnection)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- Socket (java.net)
Provides a client-side TCP socket.
- MessageFormat (java.text)
Produces concatenated messages in language-neutral way. New code should probably
use java.util.Forma
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- JOptionPane (javax.swing)
- Best IntelliJ plugins