Java Programming - Lecture 2

This lecture covers the concept of the Object and how to create a class and use the class inside of a driver program. Object Data Members and Member Functions are described. Access modifiers and method functionality is also demonstrated. The "dot" notation is also demonstrated.

[danielolmos]

I really appreciate when you compare things to C/C++ because I've been studying C++ and trying to learn Java so it helps a lot.

Thank you so much! You're an real angel, Professor! It's an amazing class, and even as a beginner I was able to understand it all. Congratulations on your initiative to upload the class resources, I'd never be able to afford to be in a class of this quality being a low-income brazilian undergraduate. I just can't thank you enough!

[joepowell]

I gave you a thumbs up but had to take it back to keep the total at 420. You are an excellent teacher. Thank you.

[Northbound]

I am glad my professor linked these videos in my lessons, this should really help me out. Thank you.

[tjfreak]

I remember watching this 8 years ago during my senior year of high school. Now I'm a software engineer doing Urban Air Mobility developjng air taxis of the future. Thank you Barbara for being my first teacher even though it was just by stumbling across your lectures!

[luckylep]

Thank you so much for the clear, concise, and broad introduction to Java. Also, thank you for putting Java in perspective by using C as a reference.

[SimonThompsonTunnelbreeze]

Hecker you are a Godess. Thanks for your exceptionally clear explanations.

[pichokonalio]

I am really thankful for all your effort that you are putting in !! I am from Latvia and these courses are really helpful. The fact that it is free and available is just astonishing!!!

[saraalmheiri]

wow ... makes me want to study in mit ...AMAZING LECTURE

[nick_jacob]

I don't have lectures at my university since i'm online only. This is helpful. I will watch the complete series. It is disappointing that I felt I learned more here in this lecture than the 3 java classes I already had...Very sad. I'm at Walden University.

[sandeepansharma]

Thanks for such brilliant at the same time easy to understand explanations, amazing work!

[primetime]

Incredible lectures. Thanks again for making them available to the world.

[bjhecker]

Humm... that is a tough question that I really can't answer. There are so many different reasons why students pick certain schools. It's best for you to do your own research and really get a feel for which environments and schools you personally like best. Good luck with your research!

[Koshka]

thank you! Best explanation! From a Pitt student!

[kI_]

Your clear explanation is so helpful!!!

[DmitriyKopylenko]

No, the default modifier is not "protected", but "package private" i.e. public to anyone in the same package - a bit different from protected where subclasses in other packages have access to them, etc.

[ravikanthnaik]

thanks for all  you have done miss Barbara :)

[jasonamaro]

5:18 - 5:22 ; "We never make instances of classes, we always make instances of objects". Isn't that wrong? Your PPT even says that an "Object is an instance of a class".

[SimphiweNcayiyana]

Thanks for your lessons Barbara, I am from South Africa and am currently doing my undergraduate studies in Bsc IT, I want to study overseas in two years from now. Can you advise me about which college to go to in US or Europe. I want to do my Masters overseas.

[jamespsims]

Hello.
  I believe if the "public" modifier is removed it defaults to friendly.
Please correct me if I am wrong.