- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- startActivity (Activity)
- getSystemService (Context)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- BufferedReader (java.io)
Wraps an existing Reader and buffers the input. Expensive interaction with the
underlying reader is
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- ExecutorService (java.util.concurrent)
An Executor that provides methods to manage termination and methods that can
produce a Future for tr
- Executors (java.util.concurrent)
Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
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