What is Java? – Java Programming Tutorial


Java Platform and What is Java, Java Used for, introduction & some Java Basic Concept. It also explains why Java Programming Language is a platform as well a programming language


AYBIN. V. K says:


Rohit Singh says:

Its print ln(LN) not In(IN)

Tech Support says:

“Store 1 at memory location say A”
“This VM runs in the RAM”
Classic java, wasting as much ram as possible.
In assembly it’d only be: add r0, #1, #2 (no ram)

The coding in here is terrible e.g. printf(1+2) should be printf(“%in”, 1+2);
“Compilers come expensive” except for those all those free ones…
system.out.printin(1+2) saved as .java. 😐

Lloric Garcia says:

now i understand why java is a everywhere, and also what really is platform is all about,, thanks for this video, its really give me a litle idea, even im still confusing. :)

MasteryMC Network :: Fuji4DaW1N_ says:

Very nice tutorial.  Thanks. :)

Ahmad Aziz says:

Good introduction :) love it

Mihir Prabhudesai says:

Epic explanation!! Hats off!!!!

Владимир Путин says:

lmao it printLn not printin

Laura I says:

Great video! Thank you for making it.

jacobmufasa says:

i didnt understand shit.

Arvin Castorico says:

A good tutorial for beginners indeed, a good piece of information. Thank you!

NarcoticRebel97 says:

very good tutorial but you made a mistake. it is System.out.println (PRINTLN) not PRINT in. I use the most current compiler and i use eclipse and it is an L not an I only that the i uppercase looks like the L lower case, here they are side by side Il… see, it is println, all lower case

TimX12 says:

I just want to know what java is not to back to high level school

John Kim says:

Now I see why Java is also a platform. Thank you for this awesome video!

Ali Al-Mahdi says:

Now that’s how you explain things properly, you go through it from the grounds up, include a bit of history as to how it came about etc…

aya magdy says:

you just summarized many things in this video , thanks a lot .


Are the binary codes for # and + correct?
I can find the codes are 00100011,00101011 for # and + respectively from some website. Pls correct me if I am wrong.

Alejandro Rodriguez says:

my brain exploded after one minute of watching this.

Richard Miller says:

Noooo! He said volt current!

Kapersky Guru says:

4:52 not system.out.print IN but LN

Antonio Campos says:

Actually 5volt is not current it’s a voltage level

Bappu Deb Nath says:

REALLY AWESOME. But as far as I know the command to show text is ‘system.out.println()’ and not ‘…printin’.
Anyways thank you.

Sandesh Uttarwar says:

what software do you use to make this type of videos??

samcrew says:

nope. didn’t understand.

bmgag19 says:

still very confused. writing a compiler for each platform is expensive? then why is writing an interpreter in the jvm for each platform not expensive? how is this different?

Irvin Dixon says:

jeeeweez barnacle boy i love java

Hirut i Bekel says:

i am not understand java.

Untoucha Boii says:

I can’t follow this at all, does that mean im an idiot or i need more basic or much basic stuff than this?

Guru99 says:

Java Programming Tutorial 1: What is Java Platform?

ArdaX95 says:

volt current?… error 404 not found

Shareef Hiasat says:

very good explanation but could you add the statment write once run every where its very short term even in my interviews i answer it for short answer then i explain

Liviu says:

System is has S capitalized

Abdulmajeed 187 says:

I feel so stupid when I watch this stuff

Walnut OfTerror says:

fuck this sounds boring

Ruslan Desyatnikov says:

very nice video. Is it a real person talking or computer voice?

Fromage says:

What is Java? About 13.8 billion years ago, there was an event known as the Big Bang…

Prathmesh Chavan says:

its really helpful, its all help to clear actual what happen at machine level and what actually code are and how its works

Jbdoster says:

FANTASTIC! Thank you!!

JasonDotCalm says:

This is by far the most comprehensive Java tutorial I’ve come across, and I appreciate the extra electronics/computer information. Sub’d, and liked. I’ll be using your entire series. I’m planning on become a Java developer, and making that my primary focus and career. You will be my teacher for now. Do you suggest I go to classes, or even college? I have my CompTIA A+ and already do computer repair for my current job, so I’m familiar with Windows computers. I watched another YouTube channel, Eli The Computer Guy, and he was saying that Web devs dont need college but OO lang devs should at least go for a computer science degree. I thought that was a bit much, however I understand credentials look better to the hiring company. I also found this article, where a hiring manager gives his opinion on a new hire with credentials vs without:


It’s in the “Training” section written by a man with the last name Shillace.

Again, thank you for the excellent video.

Navya Sai Krishna B says:

Brilliant Very Brilliant

ImageJPEG says:

compilers are expensive? ever hear of Notepad++ and gcc if you’re using Windows?

LukasSTT says:

Actually PC is Personal computer.

om shankar Sah says:

great ! can please explain more about how computer work as u explained at the beginning

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