You will get varying answers to this question depending on whom you ask. Major
advantages of OOP are:
- Simplicity: software objects
model real world objects, so the complexity is reduced and the program
structure is very clear;
- Modularity: each object
forms a separate entity whose internal workings are decoupled from other
parts of the system;
- Modifiability: it is easy to
make minor changes in the data representation or the procedures in an OO
program. Changes inside a class do not affect any other part of a program,
since the only public interface that the external world has to a class is
through the use of methods;
- Extensibility: adding new
features or responding to changing operating environments can be solved by
introducing a few new objects and modifying some existing ones;
- Maintainability: objects can
be maintained separately, making locating and fixing problems easier;
- Re-usability: objects can be
reused in different programs
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