Notes

Outline

Review View classes as modules Encapsulate operations functions are static methods View classes as struct types Encapsulate data

View Classes as Abstract Data Types (ADT) ADT = (V,O) V: a set of values O: a set of operators Information hiding, encapsulation, modularity

An Integer Class (Int)

Using the Class Int

A Rectangle Class

Using the Class Rectangle

A Stack Class

Exercises Add the following methods to the class Rectangle. int area() return the area of the rectangle boolean isSquare() test whether the rectangle is a square Define the class Queue by modifying the class Stack.