Reading and writing to text file from plugin. (Stats plugin)

What is the best way in bukkit to create a text file for each player? I am trying to create a stats plugin, and it needs to log or read data when a command is performed. For example if a player wins a game then the plugin needs to create a file if the player does not already have a stats file, and then record a win, and if the player already has a file, record the win to his stats. I also will need to be able to read from the file so that the player can see his stats. I would prefer that the files are created in a file within the plugins directory. What is the best way to do this so it works with bukkit?

 

@arsenalfcgunners Easy, bukkit has a yaml API, just use that, each time a player joins check if they have a file, if not make one then just load its configuration, write to that configuration and save it when you want to log something, the details are here - http://bukkit.org/threads/tutorial-intermediate-configuration-yaml-make-configs.45383/