- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- onRequestPermissionsResult (Fragment)
- notifyDataSetChanged (ArrayAdapter)
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- Proxy (java.net)
This class represents proxy server settings. A created instance of Proxy stores
a type and an addres
- Format (java.text)
The base class for all formats. This is an abstract base class which specifies
the protocol for clas
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- Properties (java.util)
A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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