Data Structures in Java: Part 6, Duplicate Elements, Ordered Collections, and More Ohio

A Set object cannot contain duplicate elements, but a List object can contain duplicate elements. Ordered collections are not the same as sorted collections. Specialized stipulations are placed on interfaces as you progress down the interface inheritance hierarchy of the Java Collections Framework.

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Java Programming, Lecture Notes #1360 * Preface * Preview * Discussion * Summary * What's Next -----------------------------------

Preface

This is the sixth lesson in a miniseries on Java data structures and the Java Collections Framework. The first lesson in the miniseries was entitled Data Structures in Java: Part 1, Getting Started. The previous lesson was entitled Data Structures in Java: Part 5, The Core Collection Interfaces.

The purpose of this miniseries is to help you learn the essential features of Object-Oriented data structures in Java using the Collections Framework.

Viewing tip

You may find it useful to open another copy of this lesson in a separate browser window. That will make it easier for you to scroll back and forth among the different figures and listings while you are reading about them.

Supplementary material

I recommend that you also study the other lessons in my extensive collection of online Java tutorials. You will find those lessons published at Gamelan.com. However, as of the date of this writing, Gamelan doesn't maintain a consolidated index of my Java tutorial lessons, and sometimes they are difficult to locate there. You will find a consolidated index at Baldwin's Java Programming Tutorials...

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