Is the current path `.` in the classpath by default?

Question

Do the second command add the current path as another path for searching?

javac -cp /home/tim/program_files/programming/java/junit-4.11.jar MyTest.java

javac -cp .:/home/tim/program_files/programming/java/junit-4.11.jar MyTest.java

Is it the correct way to separate multiple paths, by a colon?

Isn't the current path always in ClassPath by default, and thus no need to explicitly specify?

Thanks.

Answer 1

From Oracle's page on setting the class path:

The default class path is the current directory. Setting the CLASSPATH variable or using the -classpath command-line option overrides that default, so if you want to include the current directory in the search path, you must include "." in the new settings.

Use ; for Windows and : for Unix-like operating systems as a separator for multiple paths.