- Running tasks concurrently on multiple threads
- findViewById (Activity)
- getSystemService (Context)
- getExternalFilesDir (Context)
- URI (java.net)
A Uniform Resource Identifier that identifies an abstract or physical resource,
as specified by RFC
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- LinkedHashMap (java.util)
LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations a
- TreeSet (java.util)
TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- DataSource (javax.sql)
An interface for the creation of Connection objects which represent a connection
to a database. This
- Best IntelliJ plugins