How do I make a String array increment?

Question

I am getting jumbled up with this and I might know the answer. How do I make my String[] array increment every time this function is called? Here is the function code:

public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){

        //The /ticket command
        if(cmd.getName().equalsIgnoreCase("ticket")){
            //Gets amount of arguments
            int size_of_args = args.length;

            String ticket = null;
            String[] ticket_array;

            //Puts ticket into one string to be stored.
            for (int i=0; i<=size_of_args; i++){
                ticket = ticket + args[i];
            }


            return true;

            } else {return false;}
    }

I think I have to do a for loop, but I am very tired and this has been stumping me for quite a while. The function is not complete, so do not mention that I haven't used String commandLabel or CommandSender sender (sorry if that sounds rude). Thanks in advance!

P.S. I do not want to set a value for String[] ticket_array because the amount of tickets made should be as many as there are sent in.

@jacobm Sorry about my clarity. I mean increment the value at which ticket is stored. So the first time the function/method is called ticket_array[0] = ticket; and second time ticket_array[1] = ticket;and etc. — VinylScratch
– VinylScratch, Commented Mar 4, 2012 at 4:40

MByD · Accepted Answer · 2012-03-04 04:40:50Z

3

Consider using a List instance as class member, this way, you don't need to worry regarding the size, for example:

List<String> commandList = new ArrayList<String>(50);

public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args){
    //The ticket command
    if(cmd.getName().equalsIgnoreCase("ticket")){
        String ticket = "";
        // ommiting
        commandList.add(ticket);
        return true;
    } 
    else {
        return false;
    }
}

answered Mar 4, 2012 at 4:40

MByD

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6 Comments

VinylScratch Over a year ago

I am new to this concept, what does this do and how do I access it in the future(like you access a string with ticket_array[10];)?

MByD Over a year ago

Well, go here: docs.oracle.com/javase/tutorial/collections/interfaces/…

VinylScratch Over a year ago

I cannot read that very well. I am rather new to Java. I am illiterate :D

MByD Over a year ago

Then that's your chance to learn :-P. seriously - how can I help with that?

Nir Alfasi Over a year ago

@VinylScratch if you can't walk the walk - don't talk the talk. +1 to Binyamin.

|

Dan Simmons · Accepted Answer · 2012-03-04 04:55:29Z

0

I'm not sure if I'm understanding your question correctly but it sounds to me like you want to access a higher index of the array every time the function is called. If that's the case then you may want to consider using a static counter variable. this would have to be defined outside the scope of the function but it could be incremented during the function call

static int arrayCounter = 0;

public boolean onCommand(CommandSender sender, Command cmd, String commandLabel,            String[] args){
    //The ticket command     
    arrayCounter++;
    .
    .
    .
}

then use

ticket_array[arrayCounter];

to access the desired index

answered Mar 4, 2012 at 4:55

Dan Simmons

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