- Running tasks concurrently on multiple threads
- getApplicationContext (Context)
- setRequestProperty (URLConnection)
- notifyDataSetChanged (ArrayAdapter)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- SimpleDateFormat (java.text)
Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- ExecutorService (java.util.concurrent)
An Executor that provides methods to manage termination and methods that can
produce a Future for tr
- Filter (javax.servlet)
A filter is an object that performs filtering tasks on either the request to a
resource (a servlet o
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