Without a doubt the idea of object-oriented programming has brought some motion into the field of programming methodology and enlarged the set of programming languages. Object-oriented programming is nothing new-it first arose in the sixties. The motivation came from the simulation of discrete event systems. The concept first manifested itself in the language Simula 67. It took nearly two decades for the method to gain impetus, and today object-oriented programming is an important concept and a powerful technique. Meanwhile, we can even speak of an over reaction, for the concept has become a buzzword. But buzzwords always appear where there is the hope of exploiting ill-informed clients because they see the new approach as the solution to all their problems. Thus object-oriented programming is often hailed as a panacea. And so the question is justified: What is really behind it? To let the cat out of the bag: There is more to object-oriented programming than merely putting data as objects in the fore ground, instead of algorithms to which the data are subject. It is more than purely an alternative view of programmed systems. To identify the essence of object-oriented programming, is the subject of this book. This is a textbook that shows in a didactically skillful way which concepts and constructs are new, where they can be employed reasonably, and what advantages they offer. For, not all programs are automatically improved by merely recasting them in an object-oriented style.

This book is aimed at students who need to learn the basics of programming or who are studying computing. It is a "hands on" book containing many examples which start by illustrating basic Oberon-2 language features and gradually increase in scope to cover object-oriented programming concepts and constructs. Oberon-2 is a successor to the language Pascal, which was also designed by Prof. N. Wirth [Wir71J. It has quickly become a major language used for teaching purposes. The only thing you need for successfully working through the book is to have access to a computer running Windows 3. 11 or Windows 95. The material in the book is useful to students of schools, colleges, and universities for teaching Oberon-2 and programming at an introductory level. of the book is not focused on software engineering or object The scope oriented technology; other books mentioned in the reference section already cover these topics in much greater depth. However, the examples in the book have been designed with these topics firmly in mind. Currently the term "object-oriented" is very much in fashion, having taken over from structured programming of the 1970s and '80s. In this book we have taken the view that a structured programming approach can be used to teach the fundamentals of programming algorithms. The object-oriented approach is then brought in as a complementary way to think, analyze, design and program.

Project Oberon contains a definition of the Oberon Language and describes its relation to Modula-2 and the software tools developed with the system. This definitive, first-hand account of the design, development, and implementation of Oberon completes the Oberon trilogy.

A beginner's introduction to programming, using Oberon since it is the natural descendant of the teaching languages Pascal and Modula, and because it is designed to encourage good object-oriented practices. The author begins with introducing procedures - the basic building blocks of Oberon programs - before introducing types and then type-bound procedures. Along the way, students build increasingly complex modules of Oberon code and develop a basic understanding of the advantages of object-oriented programming. As a result students coming to programming for the first time will appreciate this hands-on textbook, while readers familiar with programming but new to Oberon will find this a well-paced guide to the language.

This book describes a practical approach to object-oriented programming and design. After explaining the basic concepts of object-orientation the book shows with numerous realistic examples how this technique can be used to write extensible and well-structured software. It discussed typical design patterns and shows implementation techniques for frequently occurring problems to be solved with object-oriented programming. Object-oriented programming is programming in the large. Although it is possible to explain the basic concepts withsmall examples it is necessary to study large and realistic applications in order to understand the power and elegance of this new technique. Therefore the book contains the design and full source code of a realistic case study - a window system with extensible text and graphics editors. The programming language used in this book is Oberon-2, the latest offspringof the Pascal and Modula-2 family of languages developed at ETH Z}rich. Besides satisfying the principle requirements of modern software such asstrong type checking, modularity and object-orientedness one of the major advantages of this language is its simplicity. Anyone who understands Pascal can also read Oberon-2 programs. Compilers for Oberon-2 as well as the source code of the case study in this book are freely available from ETH.

Object-oriented programming is a popular buzzword these days. What is the reason for this popularity? Is object-oriented programming the solution to the software crisis or is it just a fad? Is it a simple evolutionary step or a radical change in software methodology? What is the central idea behind object-orien ted design? Are there special applications for which object-oriented program ming is particularly suited? Which object-oriented language should be used? There is no simple answer to these questions. Although object-oriented programming was invented more than twenty years ago, we still cannot claim that we know everything about this programming technique. Many new con cepts have been developed during the past decade, and new applications and implications of object-oriented programming are constantly being discovered. This book can only try to explain the nature of object-oriented program ming in as much detail as possible. It should serve three purposes. First, it is intended as an introduction to the basic concepts of object-oriented program ming. Second, the book describes the concept of prototypes and explains why and how they can improve the way in which object-oriented programs are developed. Third, it introduces the programming language Omega, an object oriented language that was designed with easy, safe and efficient software development in mind.

Thecircleisclosed.The European Modula-2 Conference was originally launched with the goal of increasing the popularity of Modula-2, a programming language created by Niklaus Wirth and his team at ETH Zuric ̈ h as a successor of Pascal. For more than a decade, the conference has wandered through Europe, passing Bled,Slovenia,in1987,Loughborough,UK,in1990,Ulm,Germany,in1994,and Linz, Austria, in 1997. Now, at the beginning of the new millennium, it is back at its roots in Zuric ̈ h, Switzerland. While traveling through space and time, the conference has mutated. It has widened its scope and changed its name to Joint Modular Languages Conference (JMLC). With an invariant focus, though, on modularsoftwareconstructioninteaching,research,and“outthere”inindustry. This topic has never been more important than today, ironically not because of insu?cient language support but, quite on the contrary, due to a truly c- fusing variety of modular concepts o?ered by modern languages: modules, pa- ages, classes, and components, the newest and still controversial trend. “The recent notion of component is still very vaguely de?ned, so vaguely, in fact, that it almost seems advisable to ignore it.” (Wirth in his article “Records, Modules, Objects, Classes, Components” in honor of Hoare’s retirement in 1999). Clar- cation is needed.

Not only does this book describe the goals and architecture of the .NET Framework, but it also demonstrates how it implements facilities and services to meet these goals. This book shows developers how to produce generic frameworks, libraries, classes, and tools to be used in the .NET Framework.

Object-Oriented Design with UML and Java provides an integrated introduction to object-oriented design with the Unified Modelling Language (UML) and the Java programming language. The book demonstrates how Java applications, no matter how small, can benefit from some design during their construction. Fully road-tested by students on the authors' own courses, the book shows how these complementary technologies can be used effectively to create quality software. It requires no prior knowledge of object orientation, though readers must have some experience of Java or other high level programming language. This book covers object technology; object-oriented analysis and design; and implementation of objects with Java. It includes two case studies dealing with library applications. The UML has been incorporated into a graphical design tool called ROME, which can be downloaded from the book's website. This object modelling environment allows readers to prepare and edit various UML diagrams. ROME can be used alongside a Java compiler to generate Java code from a UML class diagram then compile and run the resulting application for hands-on learning. This text would be a valuable resource for undergraduate students taking courses on O-O analysis and design, O-O modelling, Java programming, and modelling with UML. * Integrates design and implementation, using Java and UML* Includes case studies and exercises * Bridges the gap between programming texts and high level analysis books on design