A SURVEY ON THE CONCEPT OF OBJECT ORIENTED TECHNOLOGY

Classes are a boon to computer programming. When classes were not there the code was not secure since all the functions can access all the information. The debugging of code was difficult as the program followed top-down approach and the program was not divided into modules. So, error detection was a difficult task. Another drawback without classes was lack of reusability of code. If we had to use a code more than once, then we had to rewrite the whole code. This was a monotonous task. With the introduction of classes, data hiding was improved by using access specifiers, data reusability was introduced by using the concept of inheritance and debugging was easy as the program was divided into modules and followed a bottom-up approach.