Welcome to the Java Programming Forums


The professional, friendly Java community. 21,500 members and growing!


The Java Programming Forums are a community of Java programmers from all around the World. Our members have a wide range of skills and they all have one thing in common: A passion to learn and code Java. We invite beginner Java programmers right through to Java professionals to post here and share your knowledge. Become a part of the community, help others, expand your knowledge of Java and enjoy talking with like minded people. Registration is quick and best of all free. We look forward to meeting you.


>> REGISTER NOW TO START POSTING


Members have full access to the forums. Advertisements are removed for registered users.

Results 1 to 4 of 4

Thread: ArrayList

  1. #1
    Member
    Join Date
    Aug 2013
    Location
    Netherlands
    Posts
    38
    My Mood
    Inspired
    Thanks
    1
    Thanked 1 Time in 1 Post

    Default ArrayList

    Is there a way to use an ArrayList which hold objects but not specific objects. Something like anonymous objects. For instance you dont know which objects its gonna be you just want that arraylist to hold objects


  2. #2
    Super Moderator jps's Avatar
    Join Date
    Jul 2012
    Posts
    2,642
    My Mood
    Daring
    Thanks
    90
    Thanked 263 Times in 232 Posts

    Default Re: ArrayList

    Yes, you can create an array list of type Object

  3. #3
    Member
    Join Date
    Aug 2013
    Location
    Netherlands
    Posts
    38
    My Mood
    Inspired
    Thanks
    1
    Thanked 1 Time in 1 Post

    Default Re: ArrayList

    ArrayList<Object> objects = new ArrayList<Object>();

  4. The Following User Says Thank You to gokuball For This Useful Post:

    jps (August 10th, 2013)

  5. #4
    Grand Poobah
    Join Date
    Mar 2011
    Posts
    1,545
    My Mood
    Grumpy
    Thanks
    0
    Thanked 167 Times in 158 Posts

    Default Re: ArrayList

    This sounds like a bad idea. What purpose would you have for a List that contains Chair, Spoon, Dog etc? On the other hand if the goal was to have a List of randomly generated Fiat, Ford, Audi, BMW etc objects then perhaps those classes should all extend a super class and you make the type of your List that super class:
    ArrayList<CarMake> cars = new ArrayList<CarMake>();
    ;
    Improving the world one idiot at a time!

  6. The Following User Says Thank You to Junky For This Useful Post:

    jps (August 11th, 2013)

Similar Threads

  1. How to use an ArrayList and what is its advantage over array?
    By JavaPF in forum Java SE API Tutorials
    Replies: 4
    Last Post: December 21st, 2011, 04:44 AM
  2. private Map<String, ArrayList> xlist = new HashMap<String, ArrayList>();
    By Scotty in forum What's Wrong With My Code?
    Replies: 1
    Last Post: March 21st, 2011, 08:37 AM
  3. Ordering ArrayList by 3 conditions as you add to ArrayList
    By aussiemcgr in forum Collections and Generics
    Replies: 4
    Last Post: July 13th, 2010, 02:08 PM
  4. [SOLVED] Extracting an How to ArrayList from an ArrayList and convert to int??
    By igniteflow in forum Collections and Generics
    Replies: 2
    Last Post: August 16th, 2009, 01:11 PM
  5. How to use an ArrayList and what is its advantage over array?
    By JavaPF in forum Java Code Snippets and Tutorials
    Replies: 1
    Last Post: May 17th, 2009, 01:12 PM