- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- addToBackStack (FragmentTransaction)
- getSupportFragmentManager (FragmentActivity)
- URI (java.net)
A Uniform Resource Identifier that identifies an abstract or physical resource,
as specified by RFC
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- Stream (java.util.stream)
A sequence of elements supporting sequential and parallel aggregate operations.
The following exampl
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
- Color (java.awt)
The Color class is used to encapsulate colors in the default sRGB color space or
colors in arbitrary
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