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Java Generics and Collections by Maurice Naftalin Maurice, Philip Wadler

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

This is what Maurice Naftalin calls The Get and Put Principle in his Java Generics and Collections and what Joshua Bloch calls The PECS Rule in his Effective Java. I have used generics very sparingly, but I need to learn more for the SCJP certification and more real life. Wykład prowadził Maurice Naftalin współautor książki Java Generics and Collections Pierwsza część wykładu poświęcona była idei wprowadzenia tzw. S ica 1.5 rv e Ja n in e nt G ne a mpo v Co ay J KeAMS C 43 C 2 Concepts• Generalizing Collection Classes • Using Generics with other Java 1. Reading Java Generics and Collections on Safari Books Online. An example interface which shows the usage of generics. Perhaps everyone already knows about this, but I just found a very interesting feature of Java Generics - you can declare synthetic composite types using multiple bounds to allow you to treat two different classes that implement the same interfaces as if they had a common super Collection things = new ArrayList); // DOES NOT COMPILE this.add(new Foo()); this.add(new Bar()); doSomethingElse(things);. I have a method: public List sortStuff(List toSort) { java.util.Collections.sort(toSort); return toSort; } This produces a. Java Generics: ——————. Just keep in mind that we are abstracting the type of number or String we dealing with, so that when we create we specify what kind we need and it will done in compile time for code efficiency and also preventing . 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.