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Java Forum / General / May 2006What JRE version are you using?
I work on a math expression parser library called JEP (http://www.singularsys.com/jep). We are curious what Java version compatibility developers typically require these days (1.1, 1.2, 1.3, 1.4, 1.5?). What minimum JRE version are you designing for? Also, if you know of any surveys that are published on the web, that would be useful as well. Thanks! Nathan Depends on your audience. I'd say forget about Java 1.1. Sun have End-of-Lined 1.2 and 1.3, but there are quite a number of real-life projects using them (especially in the corporate environments.) 1.4 is stable and delivers most of the niceties of 1.5 except the syntax sugar and the management APIs. So my guesstimate is: - 60% of the real world projects can use Java 5 - 80% for 1.4 - 95% for 1.3 - virtually all for 1.2 > Depends on your audience. I'd say forget about Java 1.1. For hospital computers I still see the Microsoft JVM (which is 1.1) quite frequently. I don't know how much of the reason is inertia and how much is the fact that the Microsoft JVM runs the GUI of Java 1.1 applets much faster than any of the Sun JVMs ever did. > I work on a math expression parser library called JEP > (http://www.singularsys.com/jep). We are curious what Java version [quoted text clipped - 4 lines] > any surveys that are published on the web, that would be useful as > well. I have the luxury of targeting 1.5. Some of my company's internal software still requires the MS JVM, though. > I work on a math expression parser library called JEP > (http://www.singularsys.com/jep). We are curious what Java version [quoted text clipped - 4 lines] > any surveys that are published on the web, that would be useful as > well. The shop in which I work only recently pushed beyond 1.3 into requiring 1.4.2 as a minimum. Some of our customers were still using older Java application servers from a certain large database vendor[1] that ran on 1.3 and they didn't want to risk upgrading. [1] The one that doesn't appear to know the difference between NULL columns and empty strings, and doesn't think case-insensitive indexes are all that useful. >> I work on a math expression parser library called JEP >> (http://www.singularsys.com/jep). We are curious what Java version [quoted text clipped - 13 lines] > columns and empty strings, and doesn't think case-insensitive indexes > are all that useful. don't you be slagging off oracle like that. ;-) Steve 6 Beta!!!!!!!!!!!!!!!!!!!!!!!! >What minimum JRE version are you designing for? Also, if you know of >any surveys that are published on the web, that would be useful as >well. For MS compatibility, now much less important, 1.1. For general use 1.4 for in house 1.5  SignatureCanadian Mind Products, Roedy Green. http://mindprod.com Java custom programming, consulting and coaching. >I work on a math expression parser library called JEP > (http://www.singularsys.com/jep). We are curious what Java version [quoted text clipped - 4 lines] > any surveys that are published on the web, that would be useful as > well. Stats from my department are probably not too useful, since most of the code produced here is only used internally, but we've been targetting 1.6 for a couple of months now. - Oliver >I work on a math expression parser library called JEP >(http://www.singularsys.com/jep). We are curious what Java version [quoted text clipped - 8 lines] > >Nathan OK, I'm going to jump in here (probably where I don't belong). I don't code in Java, but read this NG on a daily basis in hopes of gleaning some pointers. I actually code in ooRexx using BSF4Rexx that allows me to use any Java class in Rexx. Don't want to start a "language" war here - just providing some background info. I had been targeting 1.5 since I assumed that was what was being installed on all new systems; however, I just recently purchased a new Dell E1705 laptop only to find that it came with 1.4. :-( I immediately upgraded to 1.5; however I run SUSE 10.0 & Win98SE as VMs on this system and they both have 1.4. So in reality my target is still 1.4. I normally develop my ooRexx/BSF4Rexx applications under WinXP & 1.5, but immediately test them on the two VMs running 1.4. My personal opinion is that until the pre-loaded hardware vendors begin installing something higher than 1.4, then that will need to be the target JRE. Lee Peedin President RexxLA > I had been targeting 1.5 since I assumed that was what was being > installed on all new systems; however, I just recently purchased a new > Dell E1705 laptop only to find that it came with 1.4. :-( Presumably it's shipped with Java autoupdate enabled. That would mean it'd immediately get upgraded to 1.5. Tom Hawtin SignatureUnemployed English Java programmer http://jroller.com/page/tackline/ >> I had been targeting 1.5 since I assumed that was what was being >> installed on all new systems; however, I just recently purchased a new [quoted text clipped - 4 lines] > >Tom Hawtin Hmmm, hadn't thought about that, guess I was so busy removing all the AOL and other junk that comes on pre-loaded systems, that I didn't even give it a chance to update Java itself. Lee Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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