How to save list items on disk instead of memory in Java

Question

I\'m looking for a data structure same as ArrayList in Java that saves items on disk instead of memory. Does java have such a data structure? Thanks

I want to have a

Answer 1

Just to make the set of answers complete :)

XStream

XStream is a simple library to serialize objects to XML and back again.

Person joe = new Person("Joe", "Walnes");
joe.setPhone(new PhoneNumber(123, "1234-456"));
joe.setFax(new PhoneNumber(123, "9999-999"));

Now, to convert it to XML, all you have to do is make a simple call to XStream:

String xml = xstream.toXML(joe);

The resulting XML looks like this:

<person>
  <firstname>Joe</firstname>
  <lastname>Walnes</lastname>
  <phone>
    <code>123</code>
    <number>1234-456</number>
  </phone>
  <fax>
    <code>123</code>
    <number>9999-999</number>
  </fax>
</person>