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Core Java™ 2 Volume II - Advanced Features, Seventh Edition by Gary Cornell, Cay S. Horstmann

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Chapter 2. Collections

Object-oriented programming (OOP) encapsulates data inside classes, but this doesn't make the way in which you organize the data inside the classes any less important than in traditional programming languages. Of course, how you choose to structure the data depends on the problem you are trying to solve. Does your class need a way to easily search through thousands (or even millions) of items quickly? Does it need an ordered sequence of elements and the ability to rapidly insert and remove elements in the middle of the sequence? Does it need an array-like structure with random-access ability that can grow at run time? The way ...

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