That we can use objects as instance variables (String is an object). This is called Composition. If we think of an object as a machine, the instance variables represent the gears. We don’t want to expose …

JOHN WILEY & SONS, INC. This book presents object-oriented programming with C++ and Java, which are to-day’s two dominant languages for such programming.

All communication should be via method calls. By encapsulating object data, you maximize reusability, reduce data dependency and minimize debugging time. Of course, just as with modules in a …

NOTE: OO applies to requirements engineering because it is a modeling tool. But we are modeling domain objects, not the design of the new system Nearly anything can be an object... Source: …

To revisit the basic concepts in OO like Information Hiding, Polymorphism, Inheritance etc... operations – add, find and drop.

What is an object? an object is a software bundle of related fields (variables) and methods. In OOP, a program is a collection of objects that act on one another (vs. procedures).

One way to think about what happens in an object-oriented program is that we define what objects exist and what each one knows, and then the objects send messages to each other (by calling each …