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một máy tính và máy chủ cơ sở dữ liệu, nó dứt khoát của một ứng dụng ba lớp. Những người khác sẽ phân loại các ứng dụng bằng cách phân vùng hợp lý tiềm năng tồn tại cho phân vùng vật lý. Đối với các cuộc thảo luận trong chương này, chúng tôi sẽ có cách tiếp cận thứ hai, với lời xin lỗi trước cho những người đăng ký. | Joshua Bloch Effective Java Programming Language Guide Foreword by Guy Steele ĩheJava Series Sun . from the Source Java Effective Java Programming Language Guide Joshua Bloch Publisher Addison Wesley First Edition June 01 2001 ISBN 0-201-31005-8 272 pages Are you ready for a concise book packed with insight and wisdom not found elsewhere Do you want to gain a deeper understanding of the Java programming language Do you want to write code that is clear correct robust and reusable Look no further This book will provide you with these and many other benefits you may not even know you were looking for. Featuring fifty-seven valuable rules of thumb Effective Java Programming Language Guide contains working solutions to the programming challenges most developers encounter each day. Offering comprehensive descriptions of techniques used by the experts who developed the Java platform this book reveals what to do - and what not to do - in order to produce clear robust and efficient code. Table of Contents Foreword.1 Preface.3 Acknowledgments.4 Chapter 1. Introduction.5 Chapter 2. Creating and Destroying Objects.8 Item 1 Consider providing static factory methods instead of constructors.8 Item 2 Enforce the singleton property with a private constructor.11 Item 3 Enforce noninstantiability with a private constructor.13 Item 4 Avoid creating duplicate objects.13 Item 5 Eliminate obsolete object references.16 Item 6 Avoid finalizers.19 Chapter 3. Methods Common to All Objects.23 Item 7 Obey the general contract when overriding equals.23 Item 8 Always override hashcode when you override equals.31 Item 9 Always override tostring.35 Item 10 Override clone judiciously.37 Item 11 Consider implementing Comparable.44 Chapter 4. Classes and Interfaces. 48 Item 12 Minimize the accessibility of classes and members.48 Item 13 Favor immutability.50 Item 14 Favor composition over inheritance.57 Item 15 Design and document for inheritance or else prohibit it.61 Item 16 Prefer interfaces to .
