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.

Page 1 of 13 12311 ... LastLast
Threads 1 to 50 of 606

Forum: Collections and Generics

Arrays, ArrayList, HashMap..

  1. Post How to compare two arraylist in java?

    Started by aryan_k4564, November 27th, 2020 09:23 AM
    • Replies: 1
    • Views: 137
    November 27th, 2020, 09:45 AM Go to last post
  2. Store One String with Two Integer in JAVA MAP

    Started by shervan360, November 11th, 2020 03:09 PM
    • Replies: 2
    • Views: 344
    November 11th, 2020, 04:19 PM Go to last post
  3. Ordering items but a bit more complex then just swapping items

    Started by alfa86, July 12th, 2019 07:52 AM
    2 Pages
    1 2
    • Replies: 26
    • Views: 12,009
    July 13th, 2019, 06:12 PM Go to last post
  4. Playlist Shuffle with Collections.shuffle(......)

    Started by TmDee, May 13th, 2019 12:18 PM
    collections shuffle, java, playlist
    • Replies: 1
    • Views: 5,984
    May 13th, 2019, 03:37 PM Go to last post
  5. Lightbulb How can I rotate every n elements in an Array list by 1 index?

    Started by Nick0188, February 25th, 2019 03:27 PM
    arraylist, collections, java, lists
    • Replies: 3
    • Views: 1,371
    February 25th, 2019, 06:30 PM Go to last post
  6. Question JAVA Collection

    Started by Techexpert, January 30th, 2019 01:21 AM
    java collection
    • Replies: 1
    • Views: 608
    January 30th, 2019, 08:26 AM Go to last post
  7. How to put other backpack to main backpack?

    Started by geoinfoguide, December 29th, 2018 08:44 AM
    • Replies: 19
    • Views: 742
    January 20th, 2019, 06:44 AM Go to last post
  8. How to make an array list of objects in another object?

    Started by bonder, January 5th, 2019 03:56 PM
    java, object orientated programming
    • Replies: 2
    • Views: 548
    January 15th, 2019, 07:36 AM Go to last post
  9. Difficulty adding to collection?

    Started by Tokugawa, November 28th, 2018 05:13 PM
    • Replies: 1
    • Views: 2,018
    November 28th, 2018, 05:45 PM Go to last post
  10. Defining an Array of ArryaList of ArrayList

    Started by blinky000, November 22nd, 2018 12:58 PM
    • Replies: 2
    • Views: 798
    November 22nd, 2018, 03:05 PM Go to last post
  11. Iterating over collections in Java 8

    Started by yhqian99, August 24th, 2014 09:53 AM
    • Replies: 5
    • Views: 8,426
    October 19th, 2018, 12:49 AM Go to last post
  12. ArrayList problem

    Started by Reino17, October 10th, 2018 12:35 AM
    • Replies: 1
    • Views: 2,978
    October 10th, 2018, 07:28 PM Go to last post
  13. ArrayList and selecting random contents

    Started by rmpslkkr, September 20th, 2018 07:06 AM
    • Replies: 0
    • Views: 3,334
    September 20th, 2018, 07:06 AM Go to last post
  14. How to build an array and use it to check a calculation

    Started by Reino17, September 17th, 2018 10:02 PM
    • Replies: 1
    • Views: 543
    September 18th, 2018, 07:11 PM Go to last post
  15. Family tree : objects organization

    Started by yorran, July 23rd, 2018 04:47 AM
    • Replies: 0
    • Views: 1,253
    July 23rd, 2018, 04:47 AM Go to last post
  16. error: array required, but String found

    Started by 13whispers, April 19th, 2018 04:18 PM
    • Replies: 3
    • Views: 6,245
    April 20th, 2018, 11:39 AM Go to last post
  17. Error Accessing Array Index

    Started by 13whispers, March 24th, 2018 08:08 AM
    • Replies: 3
    • Views: 802
    March 25th, 2018, 07:03 AM Go to last post
  18. help with "Stacked" list

    Started by peper955, January 23rd, 2018 04:51 PM
    • Replies: 9
    • Views: 819
    January 24th, 2018, 03:46 PM Go to last post
  19. Want to Add Duplicate Key in HashMap

    Started by rampnq, October 28th, 2013 12:25 PM
    • Replies: 8
    • Views: 1,790
    January 17th, 2018, 05:01 PM Go to last post
  20. Is this ObserverList a correct use of WeakReferences?

    Started by Cornix, August 18th, 2014 02:08 PM
    • Replies: 1
    • Views: 937
    November 9th, 2017, 09:53 PM Go to last post
  21. Which one the best method use for Search..?

    Started by iftijafar, October 20th, 2013 02:44 AM
    • Replies: 3
    • Views: 1,428
    September 22nd, 2017, 02:08 AM Go to last post
  22. Change JTextArea to JList; Display ArrayList in JList

    Started by AP2000, June 5th, 2017 09:04 AM
    • Replies: 5
    • Views: 1,317
    June 5th, 2017, 11:37 AM Go to last post
  23. Moved: Code that works on Fiddle but doesn't work on local

    Started by ctincristi, October 9th, 2014 06:15 PM
    •  
    •  
  24. List that generates new item variables?

    Started by SomeDudeOnline, October 3rd, 2014 11:29 AM
    • Replies: 9
    • Views: 967
    October 4th, 2014, 04:10 AM Go to last post
  25. Problem with wildcard observers

    Started by Cornix, September 20th, 2014 04:46 AM
    • Replies: 0
    • Views: 765
    September 20th, 2014, 04:46 AM Go to last post
  26. Make JComboBox fill with id's from xml file

    Started by AliceH, September 17th, 2014 11:03 AM
    java, jcombobox, list, xml
    • Replies: 1
    • Views: 1,075
    September 17th, 2014, 11:13 AM Go to last post
  27. Question Need help with integer ds list

    Started by bjnzzzle, September 16th, 2014 01:02 AM
    • Replies: 1
    • Views: 667
    September 16th, 2014, 04:21 AM Go to last post
  28. Ranom Strings

    Started by ChristianBethel, September 4th, 2014 11:47 AM
    array, tutorial
    • Replies: 3
    • Views: 1,001
    September 10th, 2014, 11:09 PM Go to last post
  29. Best way to solve this ConcurrentModificationException

    Started by Cornix, June 15th, 2014 12:53 PM
    • Replies: 7
    • Views: 884
    August 2nd, 2014, 05:03 AM Go to last post
  30. [SOLVED] Singly Linked List - Sort Method

    Started by Sfrius, July 24th, 2014 12:39 AM
    • Replies: 6
    • Views: 2,557
    July 26th, 2014, 05:21 PM Go to last post
  31. [SOLVED] Problems getting value of index in 2D array operation

    Started by Flcha, July 25th, 2014 01:49 PM
    • Replies: 5
    • Views: 639
    July 26th, 2014, 04:47 AM Go to last post
  32. Moved: multiple session browser

    Started by harikumarreddyk, July 18th, 2014 07:26 AM
    •  
    •  
  33. Printing random values from array list.

    Started by toddy, June 15th, 2014 02:28 PM
    java
    • Replies: 4
    • Views: 911
    June 16th, 2014, 01:05 PM Go to last post
  34. [SOLVED] Displaying number of occurances of each word in the array

    Started by The Deacon, June 12th, 2014 01:19 AM
    • Replies: 5
    • Views: 616
    June 13th, 2014, 03:28 AM Go to last post
  35. Assignment help (splitting queue)

    Started by mattmattmatt, June 10th, 2014 05:44 PM
    • Replies: 7
    • Views: 929
    June 10th, 2014, 08:17 PM Go to last post
  36. Question Re-ordering list which has duplicate values

    Started by Sini Narayanan, June 9th, 2014 06:50 PM
    duplicates, list, re-order, sort
    • Replies: 1
    • Views: 791
    June 10th, 2014, 02:23 AM Go to last post
  37. Homework: Point me in the right direction?

    Started by mattmattmatt, May 29th, 2014 06:08 PM
    • Replies: 12
    • Views: 933
    June 4th, 2014, 09:20 PM Go to last post
  38. no return from getClientDependencies()

    Started by tpen3219, June 3rd, 2014 06:27 AM
    • Replies: 1
    • Views: 815
    June 3rd, 2014, 06:29 AM Go to last post
  39. ArrayList problem.

    Started by ben1, May 29th, 2014 09:48 AM
    • Replies: 1
    • Views: 634
    May 29th, 2014, 10:20 AM Go to last post
  40. [SOLVED] ArrayList.remove() problem. (solved)

    Started by E.K.Virtanen, May 26th, 2014 12:27 PM
    • Replies: 9
    • Views: 1,270
    May 29th, 2014, 04:50 AM Go to last post
  41. Question Boolean Array and sorting elements within it

    Started by ohGOSHTash, May 24th, 2014 10:18 AM
    array, boolean, boolean array, enum
    • Replies: 6
    • Views: 914
    May 26th, 2014, 11:22 AM Go to last post
  42. [SOLVED] 2D array, at a loss.

    Started by Time4Java, May 22nd, 2014 02:03 PM
    2d array, bluej, java
    • Replies: 5
    • Views: 782
    May 22nd, 2014, 06:57 PM Go to last post
  43. Managing different types of input

    Started by jbraque, May 18th, 2014 06:16 PM
    • Replies: 3
    • Views: 898
    May 19th, 2014, 04:09 PM Go to last post
  44. [SOLVED] Collections.binarySearch returns wrong index

    Started by Willenson, May 5th, 2014 11:43 AM
    • Replies: 5
    • Views: 699
    May 5th, 2014, 04:22 PM Go to last post
  45. [SOLVED] Cannot infer type arguments for ArrayList<>

    Started by mallorz, May 1st, 2014 04:06 PM
    • Replies: 7
    • Views: 24,682
    May 1st, 2014, 04:51 PM Go to last post
  46. How to rearrange ArrayList from text file in Java

    Started by jcaviles85, May 1st, 2014 12:02 AM
    • Replies: 2
    • Views: 768
    May 1st, 2014, 03:51 AM Go to last post
  47. FASTEST List

    Started by sci4me, April 18th, 2014 02:32 PM
    • Replies: 10
    • Views: 788
    April 30th, 2014, 02:57 AM Go to last post

Page 1 of 13 12311 ... LastLast

Thread Display Options

Use this control to limit the display of threads to those newer than the specified time frame.

Allows you to choose the data by which the thread list will be sorted.

Order threads in...

Note: when sorting by date, 'descending order' will show the newest results first.

Icon Legend

Contains unread posts
Contains unread posts
Contains no unread posts
Contains no unread posts
More than 15 replies or 150 views
Hot thread with unread posts
More than 15 replies or 150 views
Hot thread with no unread posts
Closed Thread
Thread is closed
Thread Contains a Message Written By You
You have posted in this thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •