Java Tutorial - 14 - Introduction to Object Oriented Programming

In this video I will be introducing you to what Java is really all about, and what you need to know yo be a real Java Programmer.

Just a reminder that my website is currently not available.

[TheOverAndAround]

Completely agree, This is amazing! never seen oop explained any better and ive been reading about it for months! How you explained the object in the heap and the reference to the object is what made it click to me. No one ever goes into that or just explains it in some complicated way!

[arielkruger]

I don't normally comment or like videos - but this video is amazing. You explained it in such a simply but effective way (I had no idea what my teacher was rambling off about - but thanks to you, I know what OOP is.) THANKS!!

[PressStartLetsPlay]

Thanks for the help! I was getting bored of the single class programs we have been writing in my class, and I knew there was more to java than that. This was awesome and opened my eyes to a whole new dimension of java. 

[JC-ovko]

Yes, your videos are helpful and straight forward.  I am in my senior year college and referenced your material several times.  Thanks and keep up the good work!

[soulrent]

This tutorial is fantastic! Thank you so much! I didn't understand what the heck was happening when it came to using/making objects, so this tutorial really helped!

[LeftoverPat]

This was so much more useful than the other OOP vids i've watched THANK YOU!!!!
I was absent the day my Java class talked about this -_-!!

[adrenochromedreams]

Hey man the way you explain it is so simple haha I've been struggling with OOP concepts but you really demystified it for me thanks 

[Kadasoyio]

Hey man! May many thanks for the great explanation of the basics of OOP. By using the dog example you made it a lot easier for me to grasp. Cheers!

[ProFishDaddy]

This video was exactly what I needed! Thanks :)

[NsoundarMCA]

Really very good explanation about class & object

[AbsoluteZeroBelow]

YUP! will be back very soon! just got back from a vacation, now I have to catch back up at work (going to be some long days, almost make me wish I never left) but I can't wait to make some more videos, this is for sure my favourite thing to do in my spare time!

[johnmarkatom]

This is very much friendly, helpful and great!!

[dhruvmangtani]

whats your application/download to make the video actually in the computer. Best OOP explanation i have heard. Really clarifies my code for me. Sometimes, I dont even know what code im righting

[DigitalMonsters]

9:30 why is it "very important" to distinguish between a reference and an "object".

Isn't our only means of access to an object via the reference?

If it is then the terms should be fine to be used interchangeably.

Still pretty new to programming, so could use some clarification on this.

[chrisweiss]

so do you use all of codecademys examples for your videos or just this one? seems like you're just taking what they teach and doing your own videos to it.

[KamiKze]

You instantiated the object by "Dog myDog = new Dog();" - So now the object exists in java heap. MyDog is the reference to that object. You also created another reference with yourDog which points to the same object. One thing i dont understand is when you created another object using that MyDog variable it overwrote the old one? So what happens to that old one? Everytime the main method runs it still creates that object? but then you just overwrite it later?

[daffyduck]

i get an error "Dog cannot be resolved to a type" :/  it's rrr...rough rough

[TheNuflyer]

I'm a total noob in java.. really need help about the java class and object .

[reem]

In real life why would I want to make two references to the same object? Isn't it more practical to just use 1?

[zoheyr]

thank u man, i need exercice in java it's help understand better.
Guide me please :)