What is the use of collections in java? How it is
implemented in real time applications?
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Answer Posted / pradip mishra(b-tech it)
interfaces, implementations, and algorithms — that comprise
the Java Collections Framework.
General-purpose implementations are the most commonly used
implementations, designed for everyday use. They are
summarized in the table below.
Special-purpose implementations are designed for use in
special situations and display nonstandard performance
characteristics, usage restrictions, or behavior.
Concurrent implementations are designed to support high
concurrency, typically at the expense of single-threaded
performance. These implementations are part of the
java.util.concurrent package.
Wrapper implementations are used in combination with other
types of implementations, often the general-purpose ones,
to provide added or restricted functionality.
Convenience implementations are mini-implementations,
typically made available via static factory methods, that
provide convenient, efficient alternatives to general-
purpose implementations for special collections (for
example, singleton sets).
Abstract implementations are skeletal implementations that
facilitate the construction of custom implementations —
described later in the Custom Collection Implementations
section. An advanced topic, it's not particularly
difficult, but relatively few people will need to do it.
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