- Creating JSON documents from java classes using gson
- getContentResolver (Context)
- getApplicationContext (Context)
- getSystemService (Context)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- Proxy (java.net)
This class represents proxy server settings. A created instance of Proxy stores
a type and an addres
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Deque (java.util)
A linear collection that supports element insertion and removal at both ends.
The name deque is shor
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Window (java.awt)
A Window object is a top-level window with no borders and no menubar. The
default layout for a windo
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