南京大学：《面向对象技术 OOT》课程教学资源（教材电子版）Part F：Applying the method in various languages and environments

Part F: Applying the method in various languages and environments

Part F: Applying the method in various languages and environments

Previous chapters have developed hand in hand the object-oriented method and the supporting notation.Part F will study how to realize the ideas,or emulate them,in some of the most popular languages and environments.There are three broad categories.Object-oriented languages such as Smalltalk support many of the fundamental concepts.Classical languages such as Fortran are not O-O at all,but people who must still use them (for various reasons,often not technical)may want to apply as many -O ideas as feasible within the limitations of these older approaches. Somewhere in-between,encapsulation languages such as Ada provide a first step to object orientation,essentially limited to modules based on abstract data types,but without classes or inheritance. Although the logical progression is from Classical to Encapsulation to O-O,it will be convenient to start with Encapsulation languages,focusing on Ada 83,as it provides a good reference to assess techniques applicable in classical languages,the category that will follow;we will end with a review of some of the principal O-O languages other than the notation of this book

Previous chapters have developed hand in hand the object-oriented method and the supporting notation. Part F will study how to realize the ideas, or emulate them, in some of the most popular languages and environments. There are three broad categories. Object-oriented languages such as Smalltalk support many of the fundamental concepts. Classical languages such as Fortran are not O-O at all, but people who must still use them (for various reasons, often not technical) may want to apply as many O-O ideas as feasible within the limitations of these older approaches. Somewhere in-between, encapsulation languages such as Ada provide a first step to object orientation, essentially limited to modules based on abstract data types, but without classes or inheritance. Although the logical progression is from Classical to Encapsulation to O-O, it will be convenient to start with Encapsulation languages, focusing on Ada 83, as it provides a good reference to assess techniques applicable in classical languages, the category that will follow; we will end with a review of some of the principal O-O languages other than the notation of this book