Inviting Players to Group! Please Help!

So, I want to make a plugin where you can invite people to your group. Just like towny. You can invite someone and it will send them a message saying if you want to join type /accept. How do I make it so when someone type /accept, they join the group they were invited to?

Bump!

xBlackLightx I saw your help on other posts, you seemed pretty good.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

1) You're going to get in trouble if you continue to triple post.
2) What code do you have so far?
canemonster15

 

xBlackLightx Nothing yet, I just wanna know how to find out the if the person who types /accept, has a pending invite a group.

 

canemonster15
You can only bump once per 24 hours!

Anyways.. add them to a hashmap/list when they get invited to the group, then to check if they have a pending request, check if they are in the hashmap/list.

 

bobacadodl But, what if there are multiple different groups, and people can create their own groups, do I make a hashmap/list for every group?

 

public HashMap<String,String> invitations = new HashMap<String,String>(); //player name, group name

public HashMap<String,List<String>> groups = new HashMap<String,List<String>>(); //group name, list of players in the group

 

bobacadodl Sorry, I'm kinda new with hashmaps. How would these both work?