- Reactive rest calls using spring rest template
- scheduleAtFixedRate (Timer)
- getContentResolver (Context)
- onRequestPermissionsResult (Fragment)
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- Enumeration (java.util)
A legacy iteration interface.New code should use Iterator instead. Iterator
replaces the enumeration
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- TreeSet (java.util)
TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- Collectors (java.util.stream)
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