Outputting random word out of a list?

Hi, i'm making a plugin that when a player types in a command, the plugin will send the player a word out of a list of 4 and the server op will be sent that word and the players name.
E.g.

Player types "/word"

Player gets sent word out of these 4 words : 'One', 'Two', 'Three' and 'Four'
Player gets sent 'Two'
Op gets sent player name and 'Two'

If someone could help that would be just great. Thanks in advance!

 

// setup
Random rand = new Random();
List<String> words = new ArrayList<String>()
words.add("One");
words.add("Two");
words.add("Three");
words.add("Four");

// choose a random word
String word = words.get(rand.nextInt(words.size()));

 

Thanks very much, works perfectly, do you know if I can make the command only able to be used once?

 

Yes you can.

Edit: Yes I'm intentionally avoiding writing it for you. The answer is pretty obvious. you just store whether or not the command has been used, and then check it. ie. programming.

 

Can you tell me how please?

 

no. see my edit.

 

well, i've only really been learning java for a few weeks, but if that's all your going to tell me then thanks for the help you have given.

 

"you just store whether or not the command has been used, and then check it."

unfortunately it's the only answer I can give that's not just writing the code for you (again). and that doesn't help anyone. If you're trying to learn, then you should attempt to translate what I said above into java... hint: it involves a boolean and an 'if' statement.

 

Not going to give code really, but I'll try to help you a bit with how to do it.

You want to store a Boolean value for each player. When the player runs whatever command, check to see if the Boolean is false. If it is, then run the command and set the Boolean to true. Therefore it will only run once.
If you only want the command run once on the server, then make a Boolean variable in your plugin. If you want it once per player, it's slightly more complicated (not really), look into HashMaps. (Google, it has been explained a billion trillion times.) You would store a variable of type HashMap<String,Boolean>

Edit: last post about trying to learn it for yourself was posted while i was posting. Sorry!

 

Help please this is what i have

} else if (commandLabel.equalsIgnoreCase("gmbword")) {
player.sendMessage(ChatColor.AQUA + "Choosing a random word to build...");
// setup
Random rand = new Random();
List<String> words = new ArrayList<String>();
words.add("Hill");
words.add("Tree");
words.add("Apple");
words.add("Bannana");

// choose a random word
String word = words.get(rand.nextInt(words.size()));

And all it does is Choosing a random word to build... and it doesn't select any of the words! Please help!

 

String word = words.get(rand.nextInt(words.size()));
That line selects one of the words. if you want to do something with it... then you have to do something with it. right now it just selects one and stores it as 'word'

 

Then how do i make it send the player who sent the command the word that was picked? (im still only learning these basics)

 

Connal

Code:

player.sendMessage("Chosen word: " + words.get(rand.nextInt(words.size());

 

omg whoever you are assist ur awesome

Assist ummm at the end of the player.sendMessage("Chosen word: " + words.get(rand.nextInt(words.size());
it has a red underline on the bracket, why? does it matter?

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

 

Connal
Sorry, use this:

Code:

player.sendMessage("Chosen word: " + words.get(rand.nextInt(words.size())));

 

ur just so epic assist im following u