- Making http post requests using okhttp
- getSharedPreferences (Context)
- onRequestPermissionsResult (Fragment)
- getExternalFilesDir (Context)
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- SortedMap (java.util)
A map that has its keys ordered. The sorting is according to either the natural
ordering of its keys
- ConcurrentHashMap (java.util.concurrent)
A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
version is based on or
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
- BasicDataSource (org.apache.commons.dbcp)
Basic implementation of javax.sql.DataSource that is configured via JavaBeans
properties. This is no
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