- Running tasks concurrently on multiple threads
- startActivity (Activity)
- getSharedPreferences (Context)
- getExternalFilesDir (Context)
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- URL (java.net)
A Uniform Resource Locator that identifies the location of an Internet resource
as specified by RFC
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- DateFormat (java.text)
Formats or parses dates and times.This class provides factories for obtaining
instances configured f
- DecimalFormat (java.text)
A concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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