- Running tasks concurrently on multiple threads
- getSystemService (Context)
- getSharedPreferences (Context)
- findViewById (Activity)
- FileInputStream (java.io)
An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
- Permission (java.security)
Legacy security code; do not use.
- DateFormat (java.text)
Formats or parses dates and times.This class provides factories for obtaining
instances configured f
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- ReentrantLock (java.util.concurrent.locks)
A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
- LoggerFactory (org.slf4j)
The LoggerFactory is a utility class producing Loggers for various logging APIs,
most notably for lo
- Best IntelliJ plugins