- Running tasks concurrently on multiple threads
- getSystemService (Context)
- scheduleAtFixedRate (ScheduledExecutorService)
- onRequestPermissionsResult (Fragment)
- URI (java.net)
A Uniform Resource Identifier that identifies an abstract or physical resource,
as specified by RFC
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Iterator (java.util)
An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
- Queue (java.util)
A collection designed for holding elements prior to processing. Besides basic
java.util.Collection o
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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