Solved Random Code

I want to make a simple random code:, if player type /generate (create a random code on config), and if player type /generate <code> (if its is = to the code who is on config give him a some diamonds).
In the config is like this:
--

Code:

Random:
- 123456
- 158714

 

Should the code be of a specified length? Additionally, the Random class may be of interest.

 

Hoolean
6 characters of numbers

 

Code:

private Random random = new Random();
 
public void generateNumber() {
    List<Integer> currentRandom = this.getConfig().contains("Random") ? this.getConfig().getIntegerList("Random") : new ArrayList<Integer>();
    Integer randomNumber = this.random.nextInt(999999);
    while (randomNumber < 100000) randomNumber = this.random.nextInt(999999);
    while (currentRandom.contains(randomNumber)) {
        randomNumber = this.random.nextInt(999999);
        while (randomNumber < 100000) randomNumber = this.random.nextInt(999999);
    }
    currentRandom.add(randomNumber);
    this.getConfig().set("Random", currentRandom);
    this.saveConfig();
}
 
public boolean playerWon() {
    return this.getConfig().getIntegerList("Random").contains(this.random.nextInt(999999));
}

You can change playerWon() if you like to make it have a minimum of 100000.

 

KingFaris11
What string can i show to code he generate, Like this: You get 652127 code use /generate 652127 to get some diamonds ?

EDIT: Or can i use : currentRandom to show the code ?

 

Here's the code I'd use to randomly generate a key (you may prefer KingFaris11 's version, just thought I'd throw mine into the equation also):

Code:java

private static final Random random = new Random();
 
public static String generateKey(int length)
{
    return String.format("%0" + length + "d", random.nextInt(Math.pow(10, length)));
}

 

Hoolean
I use the KingFaris, but is showing all the code, i want to show only one, like this:
http://prntscr.com/3aplvp
NOT THIS:
http://prntscr.com/3aplyo

 

Space_BR

Keep hold of the generated number separately and send that to the player; it looks like you are sending the entire list.

 

Hoolean
How can i make this? (i am noob, this is new for me)

 

You're sending the whole List... you're meant to use list.get(index);

Paste full code for that bit?

No, currentRandom is the List of integers (random numbers), show them randomNumber.

Edit: See below code.

Code:

private Random random = new Random();
private List<Integer> randomList = null;
 
public int generateNumber() {
    this.randomList = this.getConfig().contains("Random") ? this.getConfig().getIntegerList("Random") : new ArrayList<Integer>();
    Integer randomNumber = this.random.nextInt(999999);
    while (randomNumber < 100000) randomNumber = this.random.nextInt(999999);
    while (currentRandom.contains(randomNumber)) {
        randomNumber = this.random.nextInt(999999);
        while (randomNumber < 100000) randomNumber = this.random.nextInt(999999);
    }
    this.randomList.add(randomNumber);
    this.getConfig().set("Random", this.randomList);
    this.saveConfig();
    return randonNumber; // Returns the generated random number.
}
 
public int getWinningNumber() {
    if (this.randomList == null) this.randomList - this.getConfig().getIntegerList("Random");
    int randomNumber = this.random.nextInt(999999);
    return this.randomList.contains(randomNumber) ? randomNumber : -1; // This would return -1 if they did not win. By the way, you may want to add a minimum to this. (Under int randomNumber, while (randomNumber < x) randomNumber = this.random.nextInt(999999);
}

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

 

why do the while loop?
you can also do: int i = random.nextInt(900000) + 100000;
or i mistunderstand

 

@Thanks
Thanks for helping