What does this requirement mean?

[Jianping Wang]

All numeric values are stored in the header information use the formats of the DataInputStream and DataOutputStream classes

[Mike Simmons]

Have you looked at java.io.DataOutputStream and java.io.DataInputStream? They describe precisely-defined formats for reading and writing a variety of data types.

Note: please ignore links that look like this: DataOutputStream or DataInputStream. Unless someone (in the future) has fixed the current bug, they give links to http://java.sun.com/javase/6/docs/api/org/omg/CORBA/DataInputStream.html and http://java.sun.com/javase/6/docs/api/org/omg/CORBA/DataOutputStream.html. Those are definitely not what Sun/Oracle meant in the SCJD instructions. Those links are automatically provided by the JavaRanch forum software, and unfortunately, in this case, they're wrong. Ignore them.

[Roel De Nijs]

It is not a real requirement, it just tells you how you can read the stored numeric values in the header information

[David O'Meara]

Mike Simmons wrote:Note: please ignore links that look like this: DataOutputStream or DataInputStream. Unless someone (in the future) has fixed the current bug, they give links to http://java.sun.com/javase/6/docs/api/org/omg/CORBA/DataInputStream.html and http://java.sun.com/javase/6/docs/api/org/omg/CORBA/DataOutputStream.html. Those are definitely not what Sun/Oracle meant in the SCJD instructions. Those links are automatically provided by the JavaRanch forum software, and unfortunately, in this case, they're wrong. Ignore them.

Fixed along with some other small issues, just waiting on a release date. Fully qualified class names always work java.io.DataInputStream

[Mike Simmons]

Thanks, DOM.