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| • The style of programming we teach in this book is called object-oriented
programming. • An object is an instance of a class. Many instances can be created from a single class. • There are class and instance methods. We can send messages to objects and classes if they possess matching methods. • There are class and instance data values. Data values are also called data members. • Inheritance is a powerful mechanism to model two or more entities that are different but share common features. • The sequence of software development stages from conception to operation is called the software life cycle. • Five major phases of the software life cycle are analysis, design, coding, testing, and operation. • Software engineering is the application of a systematic and disciplined approach to the development, testing, and maintenance of a program. |