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- getSupportFragmentManager (FragmentActivity)
- putExtra (Intent)
- scheduleAtFixedRate (Timer)
- RandomAccessFile (java.io)
Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Comparator (java.util)
A Comparator is used to compare two objects to determine their ordering with
respect to each other.
- Collectors (java.util.stream)
- DataSource (javax.sql)
An interface for the creation of Connection objects which represent a connection
to a database. This
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
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