- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- putExtra (Intent)
- onCreateOptionsMenu (Activity)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- DateFormat (java.text)
Formats or parses dates and times.This class provides factories for obtaining
instances configured f
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- VirtualMachine (com.sun.tools.attach)
A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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