Weiqi Gao's Observations - java tag

Friday Java Quiz: Know Your JDK

Fri, 11 May 2012 12:48:36 GMT

Haven't had one of these for a while. I was busy doing other things.

Since it's been so long, I'll pose an easy quiz today:

Q: What does the following command print?

weiqi@gao /opt/jdk1.7.0_04/bin$ ls | wc -l

(/opt/jdk1.7.0_04 is where I installed my JDK, your JDK installation locations may vary.)

Strict rules apply today: You have twenty minutes to think about it and you must write down your answer before you go to your JAVA_HOME and run the command.

The Closing Down of Java

Fri, 25 Mar 2011 01:26:03 GMT

Could this be the closing down of Java?

Neal Gafter (commenting on Joseph D. Darcy's Oracle Weblog): We were told, before this and other JDK 7/8 JSRs started, that the expert group deliberations would take place in a publicly-readable forum. Not only did that not happen, now we are being asked to comment on the resulting draft specification without any reference to the issues and discussion leading to its formation. The record of the discussion would greatly help us in focusing our attention on potential problem areas. Please let me know when Oracle plans to fulfill its commitments to provide that information, and I will then be happy to provide detailed comments.

Friday Java Quiz: Know Your Properties Files

Fri, 24 Sep 2010 16:02:00 GMT

Here's a little Java quiz to cheer everyone up:

Given the following foo.properties file:

Start Time: Fri Sep 24 11\:02\:45 CDT 2010

Q: After loading this file into a java.util.Properties object, what is the value of the Start Time property in the object?

Strict rules apply today: No compiling, googling, or reading any documentations before you write down your answer.