- Running tasks concurrently on multiple threads
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- findViewById (Activity)
- setRequestProperty (URLConnection)
- RandomAccessFile (java.io)
Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- Iterator (java.util)
An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
- PriorityQueue (java.util)
A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
- FlowLayout (java.awt)
A flow layout arranges components in a left-to-right flow, much like lines of
text in a paragraph. F
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