Notes on generating JAR file:

PC
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1. Download JDK 1.4.
2. create key file called "key" (using keytool and jarsigner?)
3. compilerobot.bat

MAC
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I used the version of java preinstalled and the mac and it seemed to work.

1. create key file:

  $ keytool -genkey -alias dojo

2. Run compilerobot.sh (creates DOHRobot.jar):

  $ sh compilerobot.sh