3270 Pathway is written to the Java version 1.1 API. 3270 Pathway will not run on Java 1.0. You should obtain the latest bug-fix release of JDK 1.1 for your platform. At the time of writing the latest available JDK is JDK 1.1.8.
The following list details locations where version 1.1 JDKs for various platforms can be obtained:
JDK 1.1 is also available for a number of other platforms. A good place to start looking for them is http://www.javasoft.com/products/jdk/jdk-ports.html
To use 3270 Pathway in an applet, it requires a Web Browser that supports the Java 1.1 API. At time of writing, some browsers which provide this level of Java support are as follows:
It should be noted that earlier versions of these browsers do not provide a sufficient level of Java 1.1 support. Particularly Netscape Communicator prior to version 4.07 is not sufficient to run 3270 Pathway.