Yes. If you know how, create one (perhaps "C:\JavaPrograms") and use the CD command to move to it.
The text editor we will use is called Notepad. It comes with Microsoft operating systems. Click on the "Start" button in the lower left, then on "All Programs" then on "Accessories", and then on "Notepad". As you might expect, different versions of Windows put Notepad in different places. You may have to hunt.
After clicking on the icon, Notepad starts. Another way is to start it from the command prompt:
C:\TEMP> notepad C:\TEMP>
Is all this getting to be just too much?