Java YAML Reader

Question

I have a java program written which has to read a configuration file written using YAML (config.yml)
I downloaded the yamlbeans-1.0.jar from http://yamlbeans.sourceforge.net/ which has the YamlReader class I am using in my java program. And I then copied the YamlReader.class file to the folder where I have my Testing.java program.
Please find my java and config.yml files below.
//JAVA FILE
class Testing
public static void main(String args[]) throws Exception
YamlReader reader = new YamlReader(new FileReader("config.yml"));
Object object = reader.read();
System.out.println(object);
Map map = (Map)object;
System.out.println(map.get("NAME"));
//YAML file
NAME: mail.foobar.net
EMAIL_ADDRESS: [email protected]
AGE: 15
when I try to compile the java file, I get the following error.
C:\Users\David\Desktop\webstat\Testing.java:11: cannot access YamlReader
bad class file: .\YamlReader.class
class file contains wrong class: net.sourceforge.yamlbeans.YamlReader
Please remove or make sure it appears in the correct subdirectory of the classpath.
YamlReader reader = new YamlReader(new FileReader("config.yml"));
^
1 error
Tool completed with exit code 1
Can some one please suggest me what has to be done to get YamlReader accessible in my program.
Thanks!

Answer 1

Normally, you don't extract class files from a jar file. You just stick the whole jar file in the classpath. Like this, for example:
javac -classpath TheJar.jar MyProgram.javaSecond, YamlReader seems to be in the package net.sourceforge.yamlbeans.YamlReader.
So you wouldn't just dump YamlReader.class in the current directory; if you were to unpack it from the jar (which you shouldn't), you'd have to put it in a directory that reflected the package structure. And then you'd have to refer to the class with its full path name, or use an import statement.
You should probably read a few introductory Java tutorials before proceeding.
[add]
Damned crossposter.
Thanks for wasting my time, jerk!
Edited by: paulcw on Dec 4, 2009 12:37 PM