While well-designed algorithms improve the efficiency of the programs, the data structures
will allow a programmer to use the underlying hardware and supporting language features
to enhance the throughput of the programmers. J2SE 5.0 and later versions have provided col-
lection frameworks that provide several interfaces such as Set<T>, List<T> , Queue<T>
and Map<k,s>.
Collection framework provides an API that makes programming using data structures
easy and thereby enhances the productivity of the programmer. This is somewhat similar to
container of C++ but is vastly different. ...
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