Welcome to the World Wide Web site for the book Teach Yourself Java 2 in 21 Days by Laura Lemay and Rogers Cadenhead. This site is frequently updated in response to reader mail.

Important Note: This book was retitled Sams' Teach Yourself Java 2 in 21 Days shortly after the first printing. The reason for the change was Sun's last-minute decision to give JDK 1.2 the official name ``Java 2 SDK (version 1.2).''

The following options are available:

• Find out what readers are saying about the book
• Order the book from Amazon.Com
• Download the book's source code (fully updated with the new Swing package name used by JDK 1.2 RC 1 and RC 2, and last updated July 23, 2000)
• Contact co-author Rogers Cadenhead
• Find other books by Cadenhead
• Read our latest tips for readers of the book

The links below enable you to get the source code and resource files associated with each chapter. You also can find the most current corrections, clarifications, and reader-submitted questions about that material. Be sure to check it out when you have questions -- the answer may already be there.

Right off the bat, readers should be aware of two important issues:

• The online tutorial Using the Java Development Kit on a Windows System has been updated to cover Windows 2000, NT, and XP in addition to other Windows systems. (July 27, 2002)
• The name change to the Swing package of classes described on Day 20

Use these links for information related to a specific day in the book:

Most recent additions to this site:

• The online tutorial Using the Java Development Kit on a Windows System has been updated to cover Windows 2000, NT, and XP in addition to other Windows systems (July 27, 2002)

• A new Day 4 answer to a reader question about the loss of precision when casting integers to floating-point values. (Aug. 3, 2000)

• A new Day 13 tutorial, Handling Mouse Clicks, on using Java 2 techniques to handle mouse events in the Spots and Lines applets. (July 23, 2000)

• A Day 17 correction to a page introducing output streams (March 23, 2000)

• How can I use images in an application? A Day 21 question (March 17, 2000)

• A Day 2 correction to how the Jabberwock application is described(March 16, 2000)

• When to use getCodeBase() and getDocumentBase() -- a Day 10 question (March 16, 2000)

• How to select and deselect check boxes -- a Day 11 question (July 15, 1999)