How do i check the last time A player said a chat message

I'm trying to make an antispam system. How do i check the last time a player said something and what it was quickly just for antispam checking.

 

store the time on each cha, an coparee it whit the time of the next chat

 

how do i store the time...

 

gets an unix timeStanp of the current time by using "long time = new Data().getTime()"

 

umm does that let me check it again at the next event?

 

save it in a hashmap, and get it the next time

 

What is a hashmap

 

http://wiki.bukkit.org/Java_data_structure_classes#The_Map

 

Code:

Map<String, > myMap = new HashMap<String, >();
long time = new Date().getTime();

What do i put in the blank spaces?

 

Long, because you need the time

 

Use a hashmap