- Parsing JSON documents to java classes using gson
- getSystemService (Context)
- scheduleAtFixedRate (ScheduledExecutorService)
Creates and executes a periodic action that becomes enabled first after the
given initial delay, and
- getContentResolver (Context)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- BigDecimal (java.math)
An immutable arbitrary-precision signed decimal.A value is represented by an
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- JarFile (java.util.jar)
JarFile is used to read jar entries and their associated data from jar files.
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.