- Running tasks concurrently on multiple threads
- findViewById (Activity)
- getSupportFragmentManager (FragmentActivity)
- addToBackStack (FragmentTransaction)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- Iterator (java.util)
An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
- TimeZone (java.util)
TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
- BlockingQueue (java.util.concurrent)
A java.util.Queue that additionally supports operations that wait for the queue
to become non-empty
- Stream (java.util.stream)
A sequence of elements supporting sequential and parallel aggregate operations.
The following exampl
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
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