Please
ShowSomeEffort.
Did you click
the link that Campbell posted? The tutorial shows very clearly how to use the command line arguments.
Look at line 14 of your code. You're not using the command line arguments here.
The command line arguments are what is passed to the
main method in the
args array.
So, what do you think you need to change in line 14 so that the program is going to use the first command line argument there?