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Java Generics and Collections by Maurice Naftalin Maurice, Philip Wadler

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

I have used generics very sparingly, but I need to learn more for the SCJP certification and more real life. Arrays behave differently from the collections because arrays are covariant by default, which means that S[] is a subtype of T[] whenever S is a subtype of T, where as Generics does not support covariance. Phil Wadler and Maurice Naftalin are writing a book titled "Java Generics and Collections", to be published by O'Reilly Media, Inc. Java 1.5 came with Generics and all collection interfaces and implementations use it heavily. This is These water down the type-safety guarantee of generics collections to the point where they are no better than non-generic collections. Reading Java Generics and Collections on Safari Books Online. [SIZE="4"][COLOR="red"]Tile: Java Generics and Collections [/COLOR][/SIZE] [SIZE="4"][COLOR="seagreen"]Release date: October 2006 [/COLOR][/SIZE] File size: 9.5 MiB | 1 Part Genre: Java. As far as my understanding goes the purpose of Generics in Java is to avoid ClassCastExceptions at runtime and also minimize the crap casts when we get objects from collections. Generics allow you to abstract over types. Collections and Substitution rules. Java 7 introduced the new diamond operator represented by the <> symbols. So here I will attempt a brief description of what generics look like in Java and how to do some of the things you never knew you wanted to do. The most basic example for generics is a collection/data structure. Let us get into more practical matters. Collections are the primary motivation for Generics in Java. One of those libraries is the commons collections library, of which I use the CollectionUtils class and ListUtils mostly. Let us take a look at some substitution rules. The most common examples are container types, such as those in the Collections hierarchy. The following are some legal assignments:.