July 2017
Beginner to intermediate
715 pages
17h 3m
English
Content preview from Java: Data Science Made Easy
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Collections
Data is the most important part of data science. When dealing with data, it needs to be efficiently stored and processed, and for this we use data structures. A data structure describes a way to store data efficiently to solve a specific problem, and the Java Collection API is the standard Java API for data structures. This API offers a wide variety of implementations that are useful in practical data science applications.
We will not describe the collection API in full detail, but concentrate on the most useful and important ones--list, set, and map interfaces.
Lists are collections where each element can be accessed by its index. The g0-to implementation of the List interface is ArrayList, which should be used in 99% of cases ...