When 2 people or more type the same command

Hello! Its my 3rd post in a day, and I am really sorry if I'm bugging some people, but... I was wondering, how do you tell if more than one person typed the same command? For instance:
Dontjudgeme1243: /join_red
neontree13: /join_blue

So maybe when 2 people "join" it will send a message to console saying "I like pumper nickles"

 

You could easily do this by storing the players that execute the command in an Arraylist, and then check the length each time someone else executes the command. From there, see if the length is 2 (or whatever); and if it is, do whatever you want to.

 

NinjaWAffles

1. Umm... I'm really new... Could you give an example? I get the basics of array lists and java and stuff btw.

 

xXPumperNickleXx
Umm, like seriously? http://www.google.com

 

xXPumperNickleXx NinjaWAffles Also, use a HashSet since an ArrayList could end up storing the same player's name multiple times (unless you add a check)

 

xTrollxDudex

What, you think I didn't already try that?

 

I was assuming he'd add a check, but I didn't think of HashSet.

 

Yes you probably didn't.
http://stackoverflow.com/questions/2697182/how-to-use-an-array-list
http://www.java-samples.com/showtutorial.php?tutorialid=234
http://www.tutorialspoint.com/java/java_arraylist_class.htm
http://www.dummies.com/how-to/content/use-array-lists-in-java.html
http://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html
http://docs.oracle.com/javase/tutorial/collections/interfaces/list.html

 

Seriously, I need to start pushing this to people. Read the JavaDocs, they give you all the information you'd ever need, supposing you know the language. And as xTrollxDudex said, Google will find you answers on almost everything you can think of.