- Making http post requests using okhttp
- scheduleAtFixedRate (ScheduledExecutorService)
- setRequestProperty (URLConnection)
- getExternalFilesDir (Context)
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Stack (java.util)
Stack is a Last-In/First-Out(LIFO) data structure which represents a stack of
objects. It enables u
- Timer (java.util)
Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
- SSLHandshakeException (javax.net.ssl)
The exception that is thrown when a handshake could not be completed
successfully.
- DataSource (javax.sql)
An interface for the creation of Connection objects which represent a connection
to a database. This
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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