Object-oriented language was primarily designed to reduce complexity in typical procedural languages through data binding and encapsulation techniques. In object-oriented language, the objects created provide limited or no access to other functions or methods within the program. This enables only authorized or inherited methods/functions to access a particular object.

Object-oriented language typically supports the following features, at minimum:

• The ability to create classes and their associated objects
• Encapsulation
• Inheritance

Java, C++ and Smalltalk are popular examples of object-oriented languages.