- getSystemService (Context)
- scheduleAtFixedRate (ScheduledExecutorService)
Creates and executes a periodic action that becomes enabled first after the
given initial delay, and
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- Point (java.awt)
A point representing a location in (x,y) coordinate space, specified in integer
- FileInputStream (java.io)
An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
- FileNotFoundException (java.io)
Thrown when a file specified by a program cannot be found.
- DecimalFormat (java.text)
A concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
- MessageFormat (java.text)
Produces concatenated messages in language-neutral way. New code should probably
- Comparator (java.util)
A Comparator is used to compare two objects to determine their ordering with
respect to each other.
- HashSet (java.util)
This class implements the Set interface, backed by a java.util.HashMap.