New book claims sushi, wine okay for pregnant women. This publicity image released by Penguin Press shows Emily Oster, author of Expecting Better: Why the Conventional Pregnancy Wisdom Is Wrong-and What You Really Need to Know. (AP Photo/Penguin Press, Matthew Gilson) AP.
Classpath is a parameterâset either on the command-line, or through an environment variable âthat tells the Java Virtual Machine or the Java compiler where to look for user-defined classes and packages.imilar to the classic dynamic loading behavior, when executing Java programs, the Java Virtual Machine finds and loads classes lazily (it loads the bytecode of a class only when the class is first used).
Using the CLASSPATH environment variable. In general, you will want to use the-classpath command-line option, as explained in the previous section. This section shows you how to set the CLASSPATH environment variable if you want to do that, or clear settings left over from a previous installation.learing CLASSPATH. If your CLASSPATH environment variable has been set to a value that is not correct, or if your startup file or script is setting an incorrect path, you can unset CLASSPATH by using: This command unsets CLASSPATH for the current command prompt window only.