Object-oriented programming (Computer science) C++ (Computer program language) 21 Java (Computer program language) 11 Computer software 8 Data structures (Computer science) 6 Development 6 C (Computer program language) 5 Computer programming 5 BASIC (Computer program language) 4 UML (Computer science) 4 Object-oriented methods (Computer science) 3 Software engineering 3 Software patterns 3 COM (Computer architecture) 2 CORBA (Computer architecture) 2 Computer algorithms 2 Electronic data processing 2 Reusability 2 System design 2 Visual programming (Computer science) 2 ActionScript (Computer program language) 1 Artificial intelligence 1 C++ (Computer programm language) 1 C++(Computer science) 1 Computer architecture 1 Computer graphics 1 Computer program language 1 Computer science 1 DCOM (Computer architecture) 1 Database design 1