- Creating JSON documents from java classes using gson
- getApplicationContext (Context)
- putExtra (Intent)
- addToBackStack (FragmentTransaction)
- 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
- URI (java.net)
A Uniform Resource Identifier that identifies an abstract or physical resource,
as specified by RFC
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Handler (java.util.logging)
A Handler object accepts a logging request and exports the desired messages to a
target, for example
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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