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Using java, javac, jar, and CLASSPATH - a simple example

What Version of Java am I running? How do I edit, compile and run a Java program? What does this error message mean? How do I puts lots of classes into a single file, then run them from that file? How do I see what's in that file? How do I get Java to look for a class it needs in a series of places?

All good questions asked early on a Java course. And I answered them all earlier today. I have annotated the log [here], and you'll find the source code of my sample classes too - Annie, Bella, Chloe and Debbie.

From a Java Bootcamp Course, but taught on some other courses too!
(written 2010-07-07)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A502 - Web Application Deployment - Java - Basic Tools
  [3819] Packing a tar, jar or war file - best practise - (2012-07-26)
  [3151] Disassembling Python and Java - previously compiled code - (2011-01-29)
  [2422] Looking inside Java classes - javap and javadoc - (2009-09-25)
  [2153] Class Loading and Variable Conversion in Java - (2009-05-02)
  [1909] javax.servlet cannot be resolved - how to solve - (2008-11-26)
  [1771] More HowTo diagrams - MySQL, Tomcat and Java - (2008-08-24)
  [1562] Java Compiler - needs all classes, compiles them all too - (2008-03-03)
  [1192] What are WEB-INF and META-INF directories? - (2007-05-18)
  [1082] Straight from the .jar - (2007-02-16)
  [754] tar, jar, war, ear, sar files - (2006-06-10)

J702 - Hello Java World
  [2414] Hello World - a good traditional start to a Java course - (2009-09-22)


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Using java, javac, jar, and CLASSPATH - a simple example
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