This blog explores Scala dynamic types, a new feature of Scala 2.10, and provides some hopefully interesting exercises so you can try it out for yourself. ♦
The grand war between Oracle and Google over the Android API is over, unless
Oracle prevails on appeal. The judge and jury have spoken, and this is what
I've been too busy to blog for quite some time, but today something happened that seemed strange enough to break my silence. A student came to me with a Java source file that the grading script rejected. We looked at it and couldn't figure out why. I unearthed the error message: ♦
I am finishing the code samples for my book “Scala for the Impatient”. (Yes, for those of you who are impatiently awaiting it—the end is near. Very near.)
In the XML chapter, I started an example with
Java has no operator overloading. I always thought that was a shame. For example,
BigDecimal would be a lot more popular if you could write
a * b instead of
Another day, another keynote. A fellow from IBM talked about cloud stuff. I sat through a lot of nebulous cloud talks, but this guy was good.
The Script Bowl is another JavaOne tradition. The candidates were JRuby, Groovy, Scala, and Clojure. The JRuby pitch was simple: Use Rails for your web apps, and you are on your way to untold riches.
Here I am, on my second day of Java One. I live in the residential part of San Francisco and get to the conference on a battered “express” bus that stops at every block, starting from the ocean until it reaches mine. Then it goes straight downtown, but by the time that I get on, it is standing-room only. I make it to the keynote frazzled but just in time.
Today, JavaOne started officially. With the traditional keynote. Except, traditionally, the keynote is in a huge room that has space for everyone. Today, people were shunted into overflow rooms where they could watch on monitors. In the age of the screencast, that seems pointless—why is that better than watching on your laptop?