- Running tasks concurrently on multiple threads
- getSystemService (Context)
- getApplicationContext (Context)
- getResourceAsStream (ClassLoader)
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- Enumeration (java.util)
A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- UUID (java.util)
UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- Github Copilot alternatives