This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
I'm use below structure set class path java -classpath c:\ddd but displaying error below Usage: java [-options] class [args...] (to execute a class) or java -jar [-options] jarfile [args...] (to execute a jar file) where options include: -cp -classpath <directories and zip/jar files separated by ;> set search path for application classes and resources -D<name>=<value> set a system property -verbose[:class|gc|jni] enable verbose output -version print product version and exit -showversion print product version and continue -? -help print this help message -X print help on non-standard options how to set classpath from promt;