Originally posted by Nath Maniedeo: if ( args.length == 1 ) is that saying that if the args typed in is at least 1 character *or more ??*
In this case we are checking that the length of the array of Strings that is named args is exactly one.
If you wanted to check that the String named args had a length of 1 or more, you could check if ( args.length > 0 ) or if ( args.length >= 1 ) but in this case (== 1), we are we are checking that the array of Strings has exactly one String (regardless of the length of that String).
args is the reference to the first String in the array of Strings named "args".