Managing list or collection of objects is a very common scenario. In addition, managing that list effectively, that provides the optimum performance is also a very common need. The Java programming language offers many in-built data types for representing and modeling collection of objects. Some of the commonly used data types are:
Each of the data types behave differently under different scenarios. In addition, when writing algorithms that demonstrate highest levels of performance it is necessary to make the right choice. For many developers and architects it is not an easy choice.
This document provides details of a comparison done across various data-types supported by Java Collections Framework. In addition, it will study their performance under different circumstances.