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The Java Developers Almanac 1.4Order this book from Amazon. |
e777. Getting the Items in a JList Component// Create a list String[] items = {"A", "B", "C", "D"}; JList list = new JList(items); // Get number of items in the list int size = list.getModel().getSize(); // 4 // Get all item objects for (int i=0; i<size; i++) { Object item = list.getModel().getElementAt(i); }These methods are used to find an item: // The prefix is case-insensitive String prefix = "b"; // Search forward, starting from index 0, looking for an item that starts with "b" int start = 0; javax.swing.text.Position.Bias direction = javax.swing.text.Position.Bias.Forward; int itemIx = list.getNextMatch(prefix, start, direction); // Search backward, starting from the last item, looking for an item that starts with "b" start = list.getModel().getSize()-1; direction = javax.swing.text.Position.Bias.Backward; itemIx = list.getNextMatch(prefix, start, direction);These methods can be used to find the range of visible items: // Get number of visible items int visibleSize = list.getVisibleRowCount(); // Get index of first visible item itemIx = list.getFirstVisibleIndex(); if (itemIx < 0) { // List is either not visible or there are no items } // Get index of last visible item itemIx = list.getLastVisibleIndex(); if (itemIx < 0) { // List is either not visible or there are no items }
e775. Setting the Dimensions of an Item in a JList Component e776. Setting a Tool Tip for an Item in a JList Component e778. Adding and Removing an Item in a JList Component e779. Getting the Selected Items 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 © 2002 Addison-Wesley. |