The Java Developers Almanac 1.4


Order this book from Amazon.

   
Home > List of Packages > javax.swing  [141 examples] > JList  [12 examples]

e779. Getting the Selected Items in a JList Component

The following methods return the indices of the selected items:
    // To create a list, see e774 Creating a JList Component
    
    // Get the index of all the selected items
    int[] selectedIx = list.getSelectedIndices();
    
    // Get all the selected items using the indices
    for (int i=0; i<selectedIx.length; i++) {
        Object sel = list.getModel().getElementAt(selectedIx[i]);
    }
    
    // Get the index of the first selected item
    int firstSelIx = list.getSelectedIndex();
    
    // Get the index of the last selected item
    int lastSelIx = list.getMaxSelectionIndex();
    
    // Determine if the third item is selected
    int index = 2;
    boolean isSel = list.isSelectedIndex(index);
    
    // Determine if there are any selected items
    boolean anySelected = !list.isSelectionEmpty();
The following methods return the selected item objects:
    // Get the first selected item
    Object firstSel = list.getSelectedValue();
    
    // Get all selected items without using indices
    Object[] selected = list.getSelectedValues();

 Related Examples
e774. Creating a JList Component
e775. Setting the Dimensions of an Item in a JList Component
e776. Setting a Tool Tip for an Item in a JList Component
e777. Getting the Items in a JList Component
e778. Adding and Removing an Item in a JList Component
e780. Setting the Selected Items in a JList Component
e781. Setting the Selection Mode of a JList Component
e782. Arranging Items in a JList Component
e783. Detecting Double and Triple Clicks on an Item in a JList Component
e784. Listening for Changes to the Selection in a JList Component
e785. Listening for Changes to the Items in a JList Component

See also: Actions    JButton    JCheckBox    JComboBox    JDesktop and JInternalFrame    JFrame, JWindow, JDialog    JLabel    JProgressBar    JRadioButton    JScrollPane    JSlider    JSpinner    JSplitPane    JTabbedPane    JToolBar    Keystrokes and Input Maps    Layout    Look and Feel    Menus    Progress Monitor    The Screen    Tool Tips    UI Default Values   


© 2002 Addison-Wesley.