How do you divide a list of strings into pages.

basically what i want to do is i have a list of strings and i want the player to index through them as list that consist of 5 of the strings. basically like using a command /players list 1 would list the first 5 /players list 2 would be the second the second 5 and so on...

 

if you need this using the convertions api, you ccan use this class, else, build your own way based on this

Code:java

public class ChooseListPrompt extends MessagePrompt
{
	private final String text;
	private final Prompt next;
 
	public ChooseListPrompt(String prefix, Set<String> text, Prompt next)
	{
		this(prefix, text.iterator(), next);
 
	}
 
	protected ChooseListPrompt(String prefix, Iterator<String> text, Prompt next)
	{
 
		StringBuilder b = new StringBuilder(prefix);
		for (int i = 0; i < 10; i++)
		{
			if (text.hasNext())
			{
				if (i != 0)
				{
					b.append(", ");
				}
				b.append(text.next());
			}
 
		}
		this.text = b.toString();
		this.next = text.hasNext() ? new ChooseListPrompt(prefix, text, next) : next;
 
	}
 
	@Override
	protected Prompt getNextPrompt(ConversationContext paramConversationContext)
	{
		return this.next;
	}
 
	@Override
	public String getPromptText(ConversationContext paramConversationContext)
	{
		return this.text;
	}
}

 

how would i use this class?

 

This may be something you could use:

Code:

import java.util.ArrayList;
import java.util.List;
 
 
public class Pager {
 
    static final int PAGELENGTH = 5;
 
    public Pager()
    {
        List<String> l = new ArrayList<String>();
     
        //generates a demo List with some Strings
        for(int i=0 ; i<18 ; i++)
        {
            l.add(new StringBuilder("string").append(i+1).toString());
        }
     
        //Fetches a page and displays it afterwards
        displayList(getPage(l, 4));
     
    }
 
    /**
    *
    * @param l A list containing all Strings,
    * @param pagenr The page number
    * @return List<String> containing all Strings on the page
    */
    public List<String> getPage(List<String> l, int pagenr)
    {
        List<String> page = new ArrayList<String>();
     
        int listart = (pagenr - 1) * PAGELENGTH;
        int liend  = listart + PAGELENGTH;
     
        for(int i=listart ; i<liend ;i++)
        {
            if(i < l.size())
            {
                page.add(l.get(i));
            }
            else
            {
                break;
            }
        }
     
        return page;
    }
 
    /**
    * Displays a List<String> for debugging.
    * @param l
    */
    public void displayList(List<String> l)
    {
        for(int i=0 ; i<l.size() ; i++)
        {
            System.out.println(l.get(i));
        }
    }
}

I wrote this in only a couple of minutes. Could be not the most efficient/dynamic way to do it but it should serve the purpose for now
Most of the code is only for instant testing for you.

 

this worked very well thank you

 

No problem! Glad I could help you.