Modifying Config with a command?

Hey I am fairly new to java so I'm looking for some help. So far, I have created a Location using X, Y, and Z coordinates defined in config and they work. However, I don't want to change the numbers in config and would like a command like "/setlocation" to grab the Player's XYZ and update the ones in the config. Any help would be appreciated!

 

Viper150
You don't want to change number in the config but you also want to update them, how does that work? Just erase the file contents and rewrite them with the updated coordinates?

 

I want the values to update based on the players location. Let's say I stand at X:10 Y:10 Z:10, and the config says X:20Y:20Z:20. When I type /setlocation, the config will update to X:10Y:10Z:10 and then I can teleport back to there.

EDIT: By saying "I dont want to change the numbers in the config" I mean, I dont want to change it Manually

 

Viper150
Ah ok, in that case just delete the file and recreate it with the new values. I am assuming you know how to program basic file IO in the first place, if not I suggest you check out my link to the Plugin tutorial on the wiki in my signature.