New to Java

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: foo@bar.net
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!