Day 1: A Fistful of Java

NOTES AND CORRECTIONS

• If you're a Windows user having trouble with "Bad command or filename" errors or "Class not found" errors during this chapter, read the online tutorial Using the Java Development Kit on a Windows System.

SOURCE FILES

• HelloDan.java
• HelloDan.class

READER QUESTIONS

• Q: I saw your book, decided enough is enough, and bought it so I could learn Java. I thought Sun's Java Development Kits were always free, so how come the license for 1.2 is only for 90 days? Don't you think you should have mentioned that rather predominately in your book? -- B.F.
  A: Sun has always been strongly commited to giving the JDK away for free, and I haven't read anything to indicate a change in that policy. My guess is that the 90-day license was offered because you're working with a beta release of the JDK, and the final release won't have that reference to a time limit.

LINKS

• Eric Carroll's Dominos applet
• Sun's official Java site
• The Java Plug-in (formerly called Activator)
• Java Development Kit 1.2
• Other JDK versions
• Gamelan, Developer.Com's Java directory

BOOKS

• Sams' Teach Yourself Java 2 in 24 Hours, an introductory level Java programming tutorial by Rogers Cadenhead, the co-author of this book; also available for Java 1.1
• Sams' Teach Yourself JavaScript 1.1 in a Week, a guide by Arman Danesh to version 1.1 of Netscape's scripting language (which shares a name but no other link to Java, oddly enough)
• Laura Lemay's Web Workshop: JavaScript by Michael Moncur, another book on using JavaScript 1.1