For information about using the JDK, start at the README, which tells you:
As you write your program, look for applets with similar features among the applet examples in this release.
The README file is the only documentation included in this release. The rest of the information you need is on our Web site: http://java.sun.com/products/JDK/1.0.2/.
Note: Before you use the JDK, please read the Copyright and License Information.