Hi Guru, Maybe you can adapt the code about dynamic arrays on this page. It says Java can't really do dynamic arrays, but talks about a way to get around the problem. http://math.hws.edu/javanotes/c7/s3.html Jim Jim Homme, Usability Services, Phone: 412-544-1810. Skype: jim.homme Internal recipients, Read my accessibility blog<http://mysites.highmark.com/personal/lidikki/Blog/default.aspx>. Discuss accessibility here<http://collaborate.highmark.com/COP/technical/accessibility/default.aspx>. Accessibility Wiki: Breaking news and accessibility advice<http://collaborate.highmark.com/COP/technical/accessibility/Accessibility%20Wiki/Forms/AllPages.aspx> From: program-java-bounce@xxxxxxxxxxxxx [mailto:program-java-bounce@xxxxxxxxxxxxx] On Behalf Of Corbett, James Sent: Friday, September 03, 2010 9:40 AM To: 'program-java@xxxxxxxxxxxxx' Subject: [program-java] Java: Redimensioning my existing array. Hello all: I have an array of type double.... Double myDoubleArray = new double; ...I now need to add an additional field.... Should I redimension the array like double or should I invest in either an arrayList or HashMap? Jim James M. Corbett Programmer / Analyst | Canada Revenue Agency | Agence du revenue du Canada 875 Heron Rd. Ottawa, On. K1A0L5 James.Corbett@xxxxxxxxxxxxx Telephone | Téléphone: (613) 941-1338 Facsimile | Télécopieur: (613) 941-2261 Government of Canada | Gouvernement du Canada ________________________________ This e-mail and any attachments to it are confidential and are intended solely for use of the individual or entity to whom they are addressed. If you have received this e-mail in error, please notify the sender immediately and then delete it. If you are not the intended recipient, you must not keep, use, disclose, copy or distribute this e-mail without the author's prior permission. The views expressed in this e-mail message do not necessarily represent the views of Highmark Inc., its subsidiaries, or affiliates.