Java Utililty Methods JList Select

List of utility methods to do JList Select

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Description

The list of methods to do JList Select are organized into topic(s).

Method

voidremoveSelectionFromList(JList fileList)
Removes the selected entry from the given list. 
if (fileList.getSelectedIndex() > -1) {
    ((DefaultListModel) fileList.getModel()).remove(fileList.getSelectedIndex());
voidremoveTypeSelectionListener(JList list)
Every list component during construction registers a special handler that lets the user type letters and select elements in the list. 
KeyListener[] kls = list.getListeners(KeyListener.class);
for (KeyListener kl : kls) {
    String name = kl.getClass().getName();
    if (name.endsWith("BasicListUI$Handler"))
        list.removeKeyListener(kl);
voidselectByTyping(javax.swing.JList list, javax.swing.JTextField textfield)
This method selects the first entry in the JList list that start with the text that is entered in the filter-textfield textfield . 
String text = textfield.getText().toLowerCase();
ListModel lm = list.getModel();
for (int cnt = 0; cnt < lm.getSize(); cnt++) {
    String val = lm.getElementAt(cnt).toString();
    if (val.toLowerCase().startsWith(text)) {
        list.setSelectedIndex(cnt);
        list.ensureIndexIsVisible(cnt);
        return;
...
voidselectRow(int row, ListSelectionModel model)
select Row 
if (model == null) {
    return;
model.setSelectionInterval(row, row);
voidselectStringInList(String string, JList list)
Select an item in a JList given an items string value 
for (int i = 0; i < list.getModel().getSize(); i++) {
    if (String.valueOf(list.getModel().getElementAt(i)).equals(string)) {
        list.setSelectedIndex(i);
        return;
voidsetJListSelection(List selection, JList list)
Sets the selected items on a JList , which is a tedious task to do by hand. 
List modelItems = new ArrayList();
ListModel listModel = list.getModel();
for (int i = 0; i < listModel.getSize(); i++) {
    modelItems.add(listModel.getElementAt(i));
List indices = new ArrayList();
Iterator items = selection.iterator();
while (items.hasNext()) {
...
voidsetLeadAnchorWithoutSelection(ListSelectionModel model, int lead, int anchor)
Set the lead and anchor without affecting selection. 
if (anchor == -1) {
    anchor = lead;
if (lead == -1) {
    model.setAnchorSelectionIndex(-1);
    model.setLeadSelectionIndex(-1);
} else {
    if (model.isSelectedIndex(lead)) {
...
voidsetSelectedItems(JList list, List selected)
_more_ 
List items = getItems(list);
int cnt = 0;
int[] indices = new int[items.size()];
for (int i = 0; i < selected.size(); i++) {
    int idx = items.indexOf(selected.get(i));
    if (idx < 0) {
        continue;
    indices[cnt++] = idx;
if (cnt > 0) {
    int[] realIndices = new int[cnt];
    for (int i = 0; i < cnt; i++) {
        realIndices[i] = indices[i];
    list.setSelectedIndices(realIndices);
voidsetSelectedList(JList list, Object selected)
set Selected List 
if (list == null) {
    return;
if (list.getModel().getSize() == 0) {
    return;
if (selected == null) {
    list.setSelectedIndex(0);
...
voidsetSelectedListIndices(final JList list, final List indices)
set Selected List Indices 
final int[] selIndex = new int[indices.size()];
for (int i = 0; i < indices.size(); ++i) {
    selIndex[i] = indices.get(i);
list.setSelectedIndices(selIndex);