One of the more obvious errors occurs when a public Java class is named differently than the file that contains the class definition. This is demonstrated in the next screen snapshot.

When a source file doesn’t declare a package statement, ... Copy Listing 3 to a file named UseAudio.java and place this file in the same directory as the ca directory that you previously created.

Power Java DXML—A Second Generation XML Toolkit Kevin Wittmer Listing 3. Excerpts from the meta-file that specifies the Java data types of various elements declared in the keplerian_elements.dtd file.