Comments on: New language features in Java 7

By: Mulder

Mulder — Tue, 27 Sep 2011 12:46:33 +0000

good stuff. like the reduced code for generics, that always seemed like double typing efforts!

Why one would want/need Strings in switch is beyond me.

Underscores in large numbers is a nice gimmic but nothing else. How often do you use hard coded numbers anyway?

It’ll be while until i start to use the new way of resource cleaning.

By: Lakshman Kumar P

Lakshman Kumar P — Tue, 09 Aug 2011 06:30:24 +0000

I’m not sure about “Underscores in numeric literals” will be useful to anybody. I did not understand how they are useful for us?

By: amr negm

amr negm — Sat, 06 Aug 2011 22:58:04 +0000

I really respect this work, but other high level languages like Scala and python are still easier and more productive and relatively fast. I think java must bigger leaps to cope with today development trend

By: sandip dalsaniya

sandip dalsaniya — Fri, 05 Aug 2011 06:18:24 +0000

Great things done by java people. it will make work easy for developer to do…………..

By: Mihai

Mihai — Tue, 19 Jul 2011 14:08:07 +0000

ARM: hopefully you can chain “try” just like in C# you can chain “using”. Like this:
try (InputStream myFileStream = new FileInputStream(myFile))
try (InputStream myStream = new BufferedInputStream(myFileStream)) {
…
}

Switch on strings: I don’t see this as much of a benefit. Should avoid switching on strings as this is a hint of a code smell, where you’re taking from the compiler’s ability to find errors. Use enums or some open-ended variation thereof instead (wait, if you’re switching on strings you’re already enumerating a predefined set of values, not an open-ended one).

By: ulaganathan

ulaganathan — Thu, 14 Jul 2011 10:22:39 +0000

Very Nice Work Joe.Really Useful.Could you give examples about Closures.

By: Qadir

Qadir — Sun, 10 Jul 2011 11:22:17 +0000

Can anyone tell me how switch string is worked? I mean to say how JVM recognize the string in switch.

By: Sandip Nirmal

Sandip Nirmal — Thu, 30 Jun 2011 07:18:53 +0000

Great Article Joe. We can get the actual picture of what the features includes…

Thanks

By: Java7最新特性更新、代码示例及性能测试 | Java7最新资讯

Java7最新特性更新、代码示例及性能测试 | Java7最新资讯 — Sat, 09 Oct 2010 10:40:43 +0000

[...] Most of what is below come from the excellent article from Joe Wright on his blog about New language features in Java 7 [...]

By: Austin Chapman

Austin Chapman — Thu, 16 Sep 2010 00:40:05 +0000

As for the making common things easier it would be wise to put efforts on making class properties so it would automatically generate getters and setters. Or to provide build-in hash, equals and to-string builders (or even include all commons-lang). I’m also looking for easier ways to construct decorators and proxies so I could only implement methods I’m interested in and making other methods behave as a decorated/proxied class.
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