- Running tasks concurrently on multiple threads
- scheduleAtFixedRate (Timer)
- getSharedPreferences (Context)
- putExtra (Intent)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- Runnable (java.lang)
Represents a command that can be executed. Often used to run code in a different
Thread.
- ServerSocket (java.net)
This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- Handler (java.util.logging)
A Handler object accepts a logging request and exports the desired messages to a
target, for example
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