- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- addToBackStack (FragmentTransaction)
- getSupportFragmentManager (FragmentActivity)
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- TimeZone (java.util)
TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
- TimerTask (java.util)
The TimerTask class represents a task to run at a specified time. The task may
be run once or repeat
- TreeMap (java.util)
Walk the nodes of the tree left-to-right or right-to-left. Note that in
descending iterations, next
- Github Copilot alternatives