- Reading from database using SQL prepared statement
- setRequestProperty (URLConnection)
- getSharedPreferences (Context)
- scheduleAtFixedRate (Timer)
- LinkedHashMap (java.util)
LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations a
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
- Executors (java.util.concurrent)
Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Collectors (java.util.stream)
- Option (scala)
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