This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
As seen in java api [documentation] about ArrayList: "Resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, this class provides methods to manipulate the size of the array that is used internally to store the list. (This class is roughly equivalent to Vector, except that it is unsynchronized.)" To find out more, go here http://java.sun.com/j2se/1.3/docs/api/ and in the left hand column select the class you want to find more about, i.e. ArrayList. Hope this helps. Phil
Amit and Phil - Maybe in more human terms: 1) ArrayLists are growable 2) ArrayLists can hold heterogeneous objects (mix and match) 3) Most of the 'modern' collections have stopped imbedding synchronized methods - not having them is no biggie - 4) ArrayLists have cool built-in methods that arrays wish they had: - isEmpty - contains - clear - remove these methods make ArrayLists a lot easier and more fun to deal with than arrays. -Bert p.s. Phil - given my signoff it's inevitable... you didn't used to play in a band in the S.F. area did you
Spot false dilemmas now, ask me how!
(If you're not on the edge, you're taking up too much room.)