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Java Generics and Collections by Maurice Naftalin Maurice, Philip Wadler

Java Generics and Collections Maurice Naftalin Maurice, Philip Wadler ebook
Publisher: O'Reilly Media
ISBN: 0596527756, 9780596527754
Page: 288
Format: chm

Some time ago I passed SCJP before this exam I thought that I know Generics but I didn't. Collection interfaces: Collection, List, Set, Map, etc. "I am designing a simple Data Access Object for my Java application. I read this book twice, and I suggest every java developer two read it twice or more. With the release of Java 5, the generics feature fixed this hole for collections (and in general). This usually results in bugs since the existing code assumes that the collection contains strings. Head First Java 16 Data Structures: collections and generics Page 529 to 579. The way generics change collections is not the end of the story. It is however important to remember a few simple rules. Generics are an oddly-named thing in Java that associate objects stored in a Collection with a particular type. Code designers will be using generics to make code more flexible in more than just collections. After working with Java for almost 15 years and deep knowledge of Java generics on the class format level I learned something very basic the really, really hard way. I have a few classes (records) that represents a single row in tables like User and Fruit.. Java Generics may seem quite intimidating but it is not really that hard. General-purpose implementations: ArrayList, LinkedList, HashSet, HashMap, etc. List is a subtype of Collection . Let's take a look at a piece of code that uses a Collection to store some Strings.