A. VB 6
B. VB.NET
C. JAVA
D. C++
The correct answer is A. VB 6. VB 6 is not a true object-oriented programming language. Let’s find out how it is not an object-oriented programming language.
Table of contents:
What is VB 6?
VB 6 stands for Visual Basics 6. It is a user-friendly programming language developed by Microsoft to build Windows-based applications. It helps create simple programs quickly.
VB 6 is not considered a true object-oriented programming language because it does not fully support object-oriented programming principles.
What is object-oriented programming (OOP)?
Object-oriented programming is a programming model based on the concept of “objects.”. These objects contain both data and functions that operate on the data. Key principles of OOP include:
- Encapsulation: grouping data and methods within a class.
- Inheritance: This allows new classes to inherit properties and methods from existing classes.
- Polymorphism: Enabling objects to take on multiple forms for flexibility in code.
- Abstraction: hiding the implementation process and displaying only the necessary features.
Why is VB 6 not a true object-oriented programming language?
1. Lack of Inheritance
Inheritance allows a subclass to receive properties and methods from other classes. This makes code reuse and hierarchical structuring very efficient. However, VB 6 does not allow inheritance, making it difficult to work with.
2. Limited polymorphism
Polymorphism allows functions and methods to behave differently depending on the particular object calling the function. However, VB 6 is limited in its support of polymorphism, making it difficult for developers to build flexible, scalable applications.
3. Weak Encapsulation
Encapsulation is the process of keeping data and functions together within a class. While VB allows encapsulation, the mechanism is not as complete as those offered by most fully fledged object-oriented languages, such as Java or C++.
4. Event-Driven Nature
VB 6 relies on keystrokes and clicks; its performance and output do not depend on any data model. However, OOP is based on a data-driven model for better performance.
With the above discussion, it is clear why VB6 is not considered a true object-oriented language. Now, let’s also explore why other languages are considered true object-oriented programming languages.
Object-Oriented Programming Languages
1. VB.NET
VB.NET is the successor to VB 6 and is a fully object-oriented programming language because it supports inheritance, polymorphism, and encapsulation which make it structured and maintainable.
2. Java
Java is a true object-oriented language because it supports core OOP principles like encapsulation, abstraction, and polymorphism. Encapsulation bundles data and methods within classes, abstraction allows the use of abstract classes and interfaces, and polymorphism enables the use of the same method name for different implementations. All of these features promote flexibility. Additionally, its garbage collection automatically manages memory, ensuring efficient resource handling.
3. C++
C++ extends the C programming language, providing it with object-oriented capabilities. Its features include multiple inheritance, which allows a class to inherit from multiple parent classes; encapsulation, which hides the process and displays only the result to the user; and polymorphism, which features method overloading; and virtual functions.
Conclusion
VB 6 is good for building Windows applications, but it is not a true object-oriented programming (OOP) language. It lacks full support for key OOP features like inheritance, polymorphism, and encapsulation. In contrast, VB.NET, Java, and C++ fully support OOP principles, making them better for writing structured, reusable, and scalable programs. These languages help developers create well-organized code that is easier to maintain and expand, making them more suitable for complex and long-term software development.