It is possible to create environment variables that provide an alias for long classpaths, The classpath for some of the jar files in J2SE can be quite long
ans o it is common for such an alias to be used when defining a classpath.If you see something like JAVA_HOME or $JAVA_HOME in examquestion it just means
"That part of the absolute classpath up to the directories we are specifying explicitly." You can assume that the JAVA_HOME literal means this, and is pre-pended to the partial classpath you use.
Problem 1: Dint understand English sentence and the meaning.
Problem 2 : I want to issue following command from anywhere in my Computer using windows
java -jar jar1.jar , where jar1 is an executable jar. Suppose it is in C:\
I used c:\jar1.jar; in class path
but when i issue the above command , it says cannot find jar1.jar ???