Best way to store 2 values (String, Integer)

For the plugin I'm working on, I need a way to store a world name (as a string) and an integer. I was considering making a config file that just lists each world as well as the integer like this without the brackets (worldname,10) and then parse it later. Or I guess I could make a key for each worldname (worlds.worldname) and then the value of worldname could be the integer.

If you have any suggestions on better or easier methods I'd really appreciate it.

Thanks, Luke.

 

https://docs.oracle.com/javase/7/docs/api/java/util/Map.html

 

The best way of doing this would be a Hasmap<String,Integer>

 

How would you store hashmaps to a file? In case of reload or restart.

 

You can store them to the Config.yml, or to any other .yml file.