New: ShareX (Mar 27, 2023), Platform 24.1 (Feb 13, 2023)
450+ real apps (49GB), 1 billion downloads, Please donate.
"BlueJ is an Integrated Development Environment for the Java programming language, developed mainly for educational purposes, but also suitable for small-scale software development.
It is a windows-based platform for Java Development Kit or JDK. It can work for JDK 1.3 version and not for lower versions."
This would be great for all beginners in Java Programming since they can test the program they're making.
A link would be very helpful.
What kind of license does it have [i.e. is it opensource ?]
If you read here it will give you some guidelines that will help you to make app requests that will be more likely to get a quicker and more favorable response :
Un-official Request Apps Guidelines
https://portableapps.com/node/4507
and Welcome Cyberius to Portableapps.com 
Tim
this community is lazy...
The Developers and moderators say this as we do have other stuff to do than to just pull up license information about applications. It's up to the user that request it to provide the basic necessary information about the app so that a developer will take a look at this.
YOU are a part of this community too 
Dude, You're suppose to follow the format for requesting apps. That makes you lazy for not reading then. Tim Clark was just stating that you needed to include a link.
Then you call us lazy?
That's just sad.
Gluxon, think before you type,
the person you are replying to is not the OP, and did give helpful information, he was not "lazy" at all, even if he was snotty about it
And if it's just a reply to the wrong person, the OP did not call anyone lazy.
And you are replying to a comment from November 
Tim
BlueJ is entirely free from the official site http://www.bluej.org/ and therefor it's an open source... (The full license can be found here: http://www.bluej.org/about/license.html)
Free doesn't mean open source.
But the real point is, it is OSS.
Has anyone actually taken a look at making BlueJ a portable app? I know you can run it from a flash drive without much effort (just install it there and make sure you have a copy of the jdk in your javaportable folder). I have absolutely zero experience in how you would start making a portable app out of this, and I have looked at the "How to Create a PortableApp" and I am still none the wiser.
So, if anyone can either start this or tell me how to...
UPDATE: I figured it out, and I hope I can find a way to post my first attempt at this. I included the JDK in the package and used AppCompactor to make it smaller. It seems to run fine on my main machine (Win 7 x86) and a virtual machine (XP SP3 x86). Again, once I can find a way to upload it, I will post a link here.
I installed this and ran it. It opened, and allowed me to load up a bluej project file. But then it sort of froze and didn't want to let me do anything.
It didn't want to close down, either. I had to use process explorer to close it. Attempts to run it later, even after shutting down the computer and restarting, were met with a message that an instance of the program was already trying to start up, and that I should wait for it to start before starting another instance. I deleted the folder and reinstalled the software.
It started up, again, and this time ran perfectly well. Kudos! It's definitely a successful development.
Opening the help.html I was met with a looping screen refresh, very annoying. Inside the source was a real helpful url: the official BlueJ help page. Which doesn't tell me anything about BlueJPortable.
Just wondering what version you downloaded and tried. If it was the one with OpenJDK 7, I figured something would show up eventually.
I'll keep both of those in mind though; there's a new version of BlueJ out, and I plan on updating both the OpenJDK 6 and 7 versions separately.
It was the DevTest 2 version, that included open jdk 7.
I'm not sure if it would have had any effect, but something I noticed about the computer I was using (a college library computer) was that it had another user logged in but "timed out". Attempting to shut down the computer resulted in a message that another user was logged in and if I shut down I may end up destroying their work. They had left a CD in the tray, as well. The OS on the machine is windows 7 I believe.
The second attempt I made later was after the machine had been shut down and restarted.
Visit the Community page
Join our forums