Comments on: Coding with JDK7

By: Amit Prasad

Amit Prasad — Sun, 15 Jan 2012 10:12:14 +0000

The added feature has been explained in a nice way, good for start of jdk7.

By: Random Links #142 | YASDW - yet another software developer weblog

Random Links #142 | YASDW - yet another software developer weblog — Mon, 01 Mar 2010 20:15:49 +0000

[...] Coding with JDK7 Nice stuff, but no killer feature here [...]

By: coffeejolts

coffeejolts — Fri, 26 Feb 2010 18:43:27 +0000

The underscores in numerals is useless at best.

By: Alberto

Alberto — Thu, 25 Feb 2010 16:39:52 +0000

@Ben How about the Radix Sort?

By: IDE for testing JDK 7 features (Milestone 5: Build b76) « Ralf Schäftlein’s Blog

Mon, 23 Nov 2009 15:56:56 +0000

[...] from SUN is a developer build of Netbeans available with support for JDK 7. I tested with code from CertPal which includes several features of JDK 7. Eclipse e4 still complain about compiler errors but the [...]

By: CertPal

CertPal — Thu, 19 Nov 2009 04:03:13 +0000

@Joe Darcy Thanks for the link Joe. A very useful one indeed

By: Joe Darcy

Joe Darcy — Thu, 19 Nov 2009 00:37:57 +0000

No need to dust off Emacs, vi, or Notpad; there is a developer build of NetBeans that supports the language features in JDK 7 milestone 5; read more about the support at

http://blogs.sun.com/darcy/entry/project_coin_milestone_5_netbeans

By: CertPal

CertPal — Wed, 18 Nov 2009 05:53:47 +0000

@Randy Nice examples there. I see now why SSN and phone numbers are not great examples. I had initially assumed that the numbers can be processed and displayed with the underscores. This assumption turned out to be incorrect and the same was highlighted under the 'LIBRARY SUPPORT:' section on the open JDK site. @Mis Tigi Good observation

By: Mis Tigi

Mis Tigi — Tue, 17 Nov 2009 19:32:56 +0000

Underscores are useful for bigger numbers, to make them easier to read in the code, e.g.:
5_000_000, 2_600, 547_544_221

@Carl Smotricz Yes, I am underwhelmed too, I think thats why this is called update to JDK, ie. JDK 7 and not to language itself – like Java 7

By: Randy

Randy — Tue, 17 Nov 2009 18:27:53 +0000

These are all mostly syntactic sugar.

Switch with strings are the most useful.

I think the underscores will be more useful to compiler developers, OS developers and unit tests where more long constants might be used. When was the last time that anyone *hardcoded* a telephone number or credit card number or SSN in their code? (At least I hope mine aren’t there.

Randy

By: CertPal

CertPal — Tue, 17 Nov 2009 16:19:37 +0000

@Carl Smotricz The multiple exceptions in catch is also something that I would have liked to see as an update, but I don't feel let down by the changes. Perhaps these changes will be included down the line. Time will tell.

By: CertPal

CertPal — Tue, 17 Nov 2009 15:57:56 +0000

@Ben These were 2 examples that immediately came to mind and I still think it will make for easier coding. If you think this feature will be put to better use elsewhere feel free to drop a reply.

By: Carl Smotricz

Carl Smotricz — Tue, 17 Nov 2009 15:57:19 +0000

Is anyone else underwhelmed by the number of significant, useful changes? Out of the 4, the “switch on Strings” is the only one that’s not IMO trivial fluff. Properties and closures, on the other hand, failed to make the grade. Well, I’m sure Java will be a worthy heir to COBOL.

By: Ben

Ben — Tue, 17 Nov 2009 15:25:42 +0000

“This feature will be great to process SSNs / phone numbers.”

A poor example! Just because SSNs and phone numbers are composed of digits, doesn’t make them numerals in any meaningful sense.

By: CertPal

CertPal — Tue, 17 Nov 2009 09:06:00 +0000

@Nick Verlinde
The only useful link I could find with the numerals was from the openjdk site

http://mail.openjdk.java.net/pipermail/coin-dev/2009-April/001628.html

Not aware of any other link of use.