Java

What are Some Essential Java Libraries? 77

Posted by Cliff from the additions-to-programming-toolkits dept.
rleclerc writes "I would like to ask those 'Javaniers' in the Slashdot community what they thought were essential non-standard libraries that every Java coder should have. Normally I roll my own when it comes to that type of thing and simply build on whats available in the foundation classes. However, recent work has pushed me toward looking at some scientific libraries and I thought I would find out what libraries others in the Java community would consider an essential weapon in their Java arsenal. A few that I am looking at are the Cern scientific libraries and the Apache Commons Collections libraries. To avoid extra libraries I have opted to use the Java logging rather than the Apache one. Anyone like to add anything to the list?"
Science

What Interests High-School Students? 842

Posted by Cliff from the speak-out dept.
Jim Willis asks: "Our IT Division happens to be populated with some civic-minded people who are interested in making time available for local high-school students interested in science and technology. Question is, we're not sure the best way to do it. We're mulling around the idea of sponsoring a robotics competition or some sort of programming fair/competition. Unfortunately, we've been out of high-school long enough to not know what excites students about technology. Slashdot readers (esp. those of you in high-school): Where should we focus our attention and donate/volunteer our time?"
Christmas Cheer

What Organizations Do You Contribute To? 92

Posted by Cliff from the 'tis-the-season-of-giving dept.
Cymage asks: "I usually do my charitable contributions in December, and so I am looking at organizations to give to. I try to give to organizations with different areas of focus. Here are some of the ones I have given to in the past/am considering: Basic Needs (Atlanta) - Food Bank and St Vincent, Promoting Self-Sufficiency - Habitat and Heifer, and Digital Rights/Software - EFF, Mozilla, SourceForge, and BitTorrent. What other organizations, especially technical ones, do you give to and why?"
Software

Open Source Math Software For Education? 605

Posted by timothy from the wading-through-it dept.
Rui Carmo writes "Now here's something you don't get asked every day, but which a friend happens to need for her kids: If you had to suggest Open-Source software for mathematics - somewhere from high-school to freshman level, and not merely for 'pure' mathematics, but also applicable to physics and statistics (the kids are considering going into Applied Maths and Engineering), what would you point people toward, assuming they have access to both Linux and Windows? I know this is a niche thing and that there is nothing out there that even comes close to Wolfram's excellent Mathematica (which I used on my old NeXTCube), but surely something along the lines of (or simpler than) Calculation Center exists?" The Knoppix-based Quantian might be a good place to start; what math software do you recommend?
Handhelds

Limitations in Current Breed of Palm Handhelds? 329

Posted by Cliff from the search-for-improved-functionality dept.
JabrTheHut asks: "Having been a Palm user for over two years now, I've upgraded to a Tungsten T3. While the features I'm used to using have not changed, I have become increasingly frustrated by what I see as a lack of progress. It doesn't seem to want to deal with text files (there is no import feature for the Palm Desktop notepad or memo pad, for example). Also there seems to be no way to copy arbitrary files to the Palm - all files must be "owned" by an application. With a 256MB SD card I expected to use it to copy files between work and home. Has anyone else noticed these or other shortcomings and have figured out ways around them?"
Programming

A Barcode Driven Kitchen and Grocery List? 105

Posted by Cliff from the digital-assistance-for-common-tasks dept.
Crazy Brian asks: "I have envisioned, for some time now, having a 3Com Audrey with a barcode scanner in my kitchen, where I can scan in items as I put them away, then scan them again as I use them. Barcode information would be stored on my MySQL server, and an inventory would be updated. I could then generate a shopping list, or link it to a database of recipes, to find out what I can have for dinner tonight. The closest thing I have found is the ShopWizard from Symbol, which only runs under Windows. Is there anything out there for Linux? I hope it can use the upcdatabase to find unknown barcodes. Is there any group interest in creating something like this, assuming nothing already exists?" Icepick's Trashbin is a simple application built on this concept, but wouldn't knowing exactly what is in your cabinets and having a ready-made grocery list be a useful feature for any kitchen?
Programming

Sophistication in Web Applications? 197

Posted by Cliff from the what's-really-under-the-hood dept.
whit537 asks: "Anyone who uses Gmail for 5 minutes can see that it's a pretty dern sophisticated web application. But just how sophisticated? Well, first of all, the UI is composed of no less than nine iframes (try turning off the page styles in Firefox with View > Page Style). But then consider that these iframes are generated and controlled by a 1149 line javascript. This script includes no less than 1001 functions, and 998 of these functions have one- or two-letter names! They're obviously not maintaining this script by hand in that form. So do they write human-readable javascripts and then run them all together, or have they developed some sort of web app UI toolkit in Python? Does Gmail need to be this complex or is the obfuscation a deliberate attempt to prevent reverse-engineering? And are there any other web apps that are this sophisticated?"
The Internet

Metered HTTP Proxy? 138

Posted by Cliff from the internet-traffic-cop-(and-parent) dept.
Jon asks: "My brother-in-law has three teenage daughters. The only thing that he has to hold over their head is being online. I am trying to find him an HTTP proxy server that has metering built in. I started with Squid which has the authentication stuff in it but we would like something where we could allocate minutes, like some of the WiFi stuff you encounter at a hot spot."
Software

Becoming an Open Source Lobbyist? 30

Posted by Cliff from the better-software-for-local-government dept.
Random Guru 42 asks: "With the recent MFP scandal in Toronto, with we taxpayers having to take the brunt of the cost of licensing and leasing software the city doesn't need, I'm wondering what it would take to lobby the city to start switching over to open source software. Has anyone ever tried to lobby your local council to make the jump away from expensive, closed software?"
Graphics

GPS/Direction Overlay on Video? 20

Posted by Cliff from the layering-video dept.
doormat asks: "I've come up with a solution where I would need to overlay the current GPS location (Lat/Long) as well as the current direction onto a video stream. I've seen it on still cameras but not on video cameras. I've got the equipment for survey-grade GPS, I just need to put in onto the video frames, either in real-time or somehow in post-processing."
Hardware Hacking

USB Key Multitool? 34

Posted by Cliff from the booting-from-multiple-images dept.
srhuston asks: "I've got a USB key that I use for booting and installing machines (GRUB boots and pulls the rest from the network). This got me thinking, all the floppy disks and CDs that I use for various tasks, such as memtest86, SuperRescue, Plan-B, tomsrtbt and others with which I'd like to experiment, I could probably get a larger key and put a few of them on there. The problem is booting them all - it seems that unless I copy the contents of the CD to the key, I wouldn't be able to boot it properly, and doing that means I can only use one of them at a time and have to copy another to the key when I want to use it. Ideally I'd love to be able to have my GRUB menu (or something similar) pop up, and select which of the items I want to boot. Any ideas how I might accomplish this? GRUB doesn't seem to support booting an image (floppy or ISO), and ISOLINUX seems to want to boot just one image and not give options for multiple ones. Oh, and yes, I did look first and found more questions than answers."
Technology

Truth in Advertising? 393

Posted by Cliff from the devils-in-the-details dept.
PerformanceEng wonders: "I work as an engineer for a large technology company in the U.S., and have been privy to what I find a interesting practice. It's well known that marketing data sheets often paint the best picture of a product while leaving the devil in the details. I've come to expect this, and when I am evaluating technology, I always have a skeptic's eye for claims made by the sales and marketing folks. However, I've also witnessed our product go into test labs (usually for the purposes of running a series of tests for a 'bake off' in a trade publication). Not uncommon is the attempt to 'tune' the configuration of the device under test to perform in the best light (not unlike tuning your car to pass emissions tests). I have seen it go as far as exploiting weaknesses in the test that, if the test operator discovered, would be considered bad faith. To the other engineers: Are you aware of this kind of practice at your company? To the IT professionals: How much faith do you put in these sorts of publications and their 'bake offs'? To everyone: When does spin doctoring cross the line and become false advertising?"
Handhelds

Recommended Programmable Remote Controls? 59

Posted by Cliff from the consolidation-of-the-table-ornaments dept.
Slashdot Junky asks: "I am fed up with having several different remote controls for my living room A/V gear and have decided to buy a high-end programmable remote to replace them. I have a TWC SciAtl Explorer 8000 DVR box, DVD player, Onkyo HT receiver, TV, and a home brew PC media server connected. I am looking for one that is comfortable to hold and more importantly, capable of DOING EVERYTHING that each of my existing remotes do. So, what remotes are you all using? Why did you select the one you have? What should I look for in my search? What don't you like about it? What do you like? What else should I be asking?"
Education

WAN/LAN/VoIP Training Other than Cisco? 106

Posted by Cliff from the budget-safe-educational-options dept.
skeezix-the-cat asks: "After 9/11, the economy tanked, and a lot of state budgets shrank drastically, especially IT budgets. I work for a NOC for a western state with a population as sparse as Wyoming, but not nearly as well connected that was particularly hard hit by the recession. Training money at our agency has been scant, almost non-existent since 2001. Security has seen some bucks, and Windows/Microsoft training of course for the LAN team but general WAN training has suffered. Cisco VoIP training would be swell, and it's everywhere (but in our state). I have one shot at top-shelf training, a week, maybe two. What else is out there as far as LAN/WAN/VoIP training that would cover VoIP and related in a non-Cisco format that still would translate into my Cisco environment?"
Education

New Technologies for Colleges? 86

Posted by Cliff from the new-ways-to-help-students dept.
sinco asks: "I'm on my university's Student Government Association as the position of Vice President of Technology. Our school has currently provided wireless internet, course management software (Blackboard), personal web space for students, the ability to register classes online, and some more tech features. What type of solutions is out there that might enhance the university's technology for students? What type of cool things is your school doing tech wise for its students?"

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