- Making http requests using okhttp
- addToBackStack (FragmentTransaction)
- getSupportFragmentManager (FragmentActivity)
- getExternalFilesDir (Context)
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- Executors (java.util.concurrent)
Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
- AtomicInteger (java.util.concurrent.atomic)
An int value that may be updated atomically. See the java.util.concurrent.atomic
package specificati
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
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