The Java Developers Almanac 1.4


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

e780. Setting the Selected Items in a JList Component

List selection events are fired when the following methods are used to change the set of selected items (see e774 Creating a JList Component).
    // Create a list and get the model
    String[] items = {"A", "B", "C", "D"};
    JList list = new JList(items);
    
    // Select the second item
    int start = 1;
    int end = 1;
    list.setSelectionInterval(start, end);       // B
    
    // Select the first 3 items
    start = 0;
    end = 2;
    list.setSelectionInterval(start, end);       // A, B, C
    
    // Select all the items
    start = 0;
    end = list.getModel().getSize()-1;
    if (end >= 0) {
        list.setSelectionInterval(start, end);   // A, B, C, D
    }
    
    // Clear all selections
    list.clearSelection();
    
    // Select the first item
    start = 0;
    end = 0;
    list.setSelectionInterval(start, end);       // A
    
    // Add another selection - the third item
    start = 2;
    end = 2;
    list.addSelectionInterval(start, end);       // A, C
    
    // Deselect the first item
    start = 0;
    end = 0;
    list.removeSelectionInterval(start, end);    // C
    
    // Select a single item
    boolean scrollIntoView = true;
    list.setSelectedValue("B", scrollIntoView);  // B

 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
e779. Getting 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.