Move an item from one list/arraylist to another list/arraylist

Question

How to move an item from one list/arraylist to another list/arraylist?

Here's what I am required to do

Add songs from a text field to a music library ArrayList.
Select songs in the List Box and add them to the Playlist.
Select songs in the Playlist List Box and remove them from the Playlist.
Sort the songs in the Playlist.

I finally figured out how to add items to an arraylist and display them in a listbox. Now I need to know how to select them and move them to another list/array using a button.

Any ideas?

Take a look at this which suggest that you need to create a ListModel which uses your List as it's data source. The code your teacher gave is for working with Lists from the collections API, not JList. You may also want to check out How to use lists for more details — MadProgrammer
– MadProgrammer, Commented Jun 21, 2013 at 5:10
Thanks, i found out i was supposed to use AWT lists instead of Swing lists. Ive updated my question but i was able to get the first list box to display the array — Connor Mackay
– Connor Mackay, Commented Jun 21, 2013 at 5:47

Michael Shrestha · Accepted Answer · 2013-06-21 05:41:32Z

2

It will be easier for you to use ListModel as suggested by MadProgrammer

You can try like this

model = new DefaultListModel<String>();
    for(String str : playlist){
         model.addElement(str);
    }    
    listPlaylist.setModel(model);     
    listPlaylist.setSelectedIndex(0);

You can create two models for library and playlist and perform operations

edited Jun 21, 2013 at 5:41

answered Jun 21, 2013 at 5:09

Michael Shrestha

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3 Comments

Connor Mackay Over a year ago

Well I dont know hoe to make the arraylist my teacher gave me into an area, heres the code he told me to use for it private ArrayList<String> library = new ArrayList<String>(); And ass for using .setlistdata Its giving me the same error as .add and .setText

Connor Mackay Over a year ago

I managed to make the arraylist into an array, but now my library.add(txtSong.getText()); isnt working, and highlights .add

Michael Shrestha Over a year ago

check a sample here it will be easier for u....java2s.com/Code/Java/Swing-JFC/…

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