ruby

Here's some sample JRuby code that I just used to take a screenshot of my desktop. It uses the Toolkit and Robot classes from Java to make it all happen. It could probably be a little shorter, but I don't know much about JRuby yet. I also had a problem getting the Java File class to work properly, and referencing it as shown was the only way I could get it to work.

This is just my second JRuby program, but I thought I might as well go for the gusto. This Ruby/JRuby program creates an instance of a Java Robot class (java.awt.Robot), then moves the mouse to a position where it clicks the Minimize button on a full-screen window (assuming a display resolution of 1024x768). Warning: if you have something else in that location it will click that instead!

Here's the Ruby/JRuby code:

I recently needed to print the information in a Ruby hash, with the results sorted by value. Here's a general recipe on how to print the hash results sorted by value. I've created a sample hash, and populated the hash with sample data, to show how this works.

First, here's the sample code, using the first name of each person as the key, and the last name as the value of the key/value pair:

If you ever see the following error message when running a Ruby mail script that uses the IMAP library it may not be as bad as it seems:

Here's a Ruby mail program that I use to read my inbox, and move mail messages from a group of people that I have read to an IMAP folder that I have setup specifically for those people. The beauty of this is that I don't move the email messages I haven't read yet -- I just move the messages I have read.