Extra classes were very helpful . Semester project was really helpful to understand the practical use of OOP concepts.Since there was no GUI included , there were no confusions.Out of three OOP projects I have done this one was the most helpful and the most clear.I am so glad I took this subject this semester , because I think I obtained a good knowledge on OOP as well as JAVA.I am really glad since I was able to complete the project on my own and I am very confident now because of that.Looking forward to OOSD course.Dear madam , thank you very much for your support . -Alice