Welcome to Jpassion.com (previously known as www.javapassion.com) The best Online Programming Courses learning platform for last 20 years. Javapassion.com was founded in year 2003. All courses materials are prepared by instructor Sang Shin who is founder and chief instructor of JPassion.com and former lead Java technology evangelist from Sun Microsystems.Read more about Sang Shin at Oracle Blog's post Java University with Sang Shin

All courses topics are including their associated download materials i.e. PDF, Hands on Labs Zip from previous codecamps so you can take them as self-paced manner at any time. Watch full course playlist videos on our Youtube Channel https://www.youtube.com/@jpassioncourses . Subscribe to get latest updates.

Jar

Topics

“jar” tool (from JDK)
Packaging an application into a “jar” file
“jar” file in the classpath
“jarscan” utility (Free 3rd-party software)
“jarsigner” utility (from JDK)

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Our Users Testimonials

Excellent REST with Spring 2 day code-camp. A high speed tour through all the important stuff. Good tutorial material with clear explanations and plenty of relevant hands-on labs. Five star!

Jonathan Lister

Sang illustrated the core topics of Java Generic and Lambda. It strongly enhances my Java knowledge in detail. Lambda is brand new to me, I learned a lots from this code camp. And it was always a very good experience to watch Sang's demonstration on coding and resolve issues with his help in class. Many thanks to you, Sang!

Steve Lin

Absolutely great. Excellent cource-contents with v.quick introduction to the concepts. It is the best training and v.much worth for what we pay....

Jagadeesh Krishnan

Whenever I've attended Sang's codecamps or his tutorials, I can't appreciate enough the efforts he makes and goes out of his way to explain the details. In today's fast times, it nice to know that you can go to a reliable mentor who can teach you the latest technologies so easily, and who is also very affordable. There are many instructors out there, but Sang stands out for his humility and passion. Thank you Sang for your great service.

Deepak Menzes

Professor Sang Shin provides an awesome training experience, complete with multimedia support which can be referenced later on for further reinforcement

Paul Tyner

I have already recommended JPassion to friends of mine who are interested in getting started with programming -- the material is very accessible and our instructor is very responsive.

Jarett DeAngelis

Sang Shin makes all the concept supper easy to understand and materials are well structure and easy to follow. ty

Rehan Siddiqui

Superb overview of lamda expressions and very clear examples. Highly recommended.

Joel Kass

Sang, Thank you very much for teaching Java 8 key features in a day ! I always count on JPassion for catching up or starting over :)

Santhi

Tried to understand AngularJS with other videos & documents. This is informative and makes it understandable & ready to use it.use

Vonnie K.

Why pay 4-digit $$, as it is said on the site, for courses when you get more out of it with just $xx-$xxx?! This would be the only bootCamp on Java technologies if I would ever be asked for recommendation. Sir Mr. Shin rocks!!

Hyeontae Kim

JPASSION html 5 course is a very good course for a wide range of audience. That course includes multiple topics with code samples that developers can use “out of box”. Technical level of instructor is excellent.

Kelman, Yevgeniy

Spring course covers begin to intermediate in depth, easy to follow, has links for more study; material contains understandable walk-thrus, good examples shown and provided; instructor clear, knowledgeable, and patient.

Vonnie Kinsey

Thank you very much for the course "Ruby on rails". It is so well organized and has so much materials that gives excellent opportunity for the professional study and good start point for the development.

Yury K.

Hello Shin! Thank you for being an excellent Evangelist! I know teachers like you are not easy to find. I appreciate your time, your patience, your ability to make Ruby on Rails interesting online 5-day codecamp. Have a nice day!

Donatien M.

Thank you very much, so much information, but I really learned a lot. The labs are really great, I'll keep going back to those in the future.

Roger H.

Nobody can teach you better Java (JVM) related courses than Sir Sang Shin. He is a true master.

Asif I.

The Web services course is extremely informative with lots of hands-on coding examples.

Dileep

I have been a Web Developer for 10 years, best training for value you will get. JPassion is how you become a stronger developer.

Mark M.

I certainly get a lot out of your courses and I am sure many others do too. It is very good value for the money I paid.

Pratap C.

I found the course to be extremely informative. The contents are well organized and the labs are a superb learning tool because each step is shown. If you're hoping to get into Web services and/or SOA, this is the course to take.

D. F.KFLA Public Health

This course is intensive. The material is presented well and the labs are very informative and give a basis from which to start a project. The course is fast paced; wish it had been two weeks for my own comfort.

John G.

Jar

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