ArrayList to String/outOfBounds

**Scotty** · February 27th, 2011, 11:52 AM

Hiya,

I am trying to create a single String out of an array list.

I am building up the code, but does anyone know why I get a arrayOutOfBounds for this

protected ArrayList<Dice> allRounds = new ArrayList<Dice>();
protected String[] roundInfo = new String[allRounds.size()];
 
....................................................................................................	
 
public void newFin(Dice addRound) {
			allRounds.add(addRound);
  		}
 
		public String[] getInfoForAll) {
			for (int i = 0; i<allRounds.size(); i++) {
				roundInfo[i] = getInfo(allRounds.get(i));
			}
 
			return roundInfo;
 
		}

or does anyone know how to create a single String out of an array of Strings?

Thanks,

**j0ni** · February 27th, 2011, 08:53 PM

why do not use roundInfo.length instead of allRound.size()?? to create a single String out of an array of Strings just do astring+=array[i];

**Scotty** · February 28th, 2011, 03:32 AM

because it is in arrayList not an array? so array.length is wrong?

**JavaPF** · February 28th, 2011, 07:32 AM

You are going to need to post something we can compile.

Take a look at this and see if it will help you:

import java.util.ArrayList;
 
public class ArrayListString {
 
	/**
	 * JavaProgrammingForums.com
	 */
    public static void main(String[] args) {
 
        ArrayList<String> al = new ArrayList<String>();
 
        // Fill ArrayList (index, String)
        al.add(0, "Java");
        al.add(1, "Programming");
        al.add(2, "Forums");
        al.add(3, ".com");
 
        // Convert ArrayList to Object array
        Object[] elements = al.toArray();
 
        String myString = "";
 
        // Print Object content
        for (int a = 0; a < elements.length; a++) {
            //System.out.println(elements[a]);
        	myString = myString + elements[a];
        }
 
        // New complete String
        System.out.println(myString);
    }
}

**Scotty** · February 28th, 2011, 04:41 PM

Thank you!

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