- Making http post requests using okhttp
- getSystemService (Context)
- onRequestPermissionsResult (Fragment)
- onCreateOptionsMenu (Activity)
- InputStreamReader (java.io)
A class for turning a byte stream into a character stream. Data read from the
source input stream is
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- BigInteger (java.math)
An immutable arbitrary-precision signed integer.FAST CRYPTOGRAPHY
This implementation is efficient f
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
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