Java Utililty Methods JList Select

List of utility methods to do JList Select

  1. HOME
  2. Java
  3. J
  4. JList Select

Description

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

Method

ListgetSelectedItems(DefaultListModel listModel, ListSelectionModel selectionModel)
get Selected Items 
int iMin = selectionModel.getMinSelectionIndex();
int iMax = selectionModel.getMaxSelectionIndex();
final ArrayList<T> itemList = new ArrayList<>();
if (iMin < 0 || iMax < 0) {
    return itemList;
for (int i = iMin; i <= iMax; i++) {
    if (selectionModel.isSelectedIndex(i)) {
...
Object[]getSelectedMultipleList(JList anJList)
fillList 
Object[] el = null;
el = anJList.getSelectedValues();
return el;
int[]getSelectedRows(ListSelectionModel listSelectionModel)
get Selected Rows 
int iMin = listSelectionModel.getMinSelectionIndex();
int iMax = listSelectionModel.getMaxSelectionIndex();
if ((iMin == -1) || (iMax == -1)) {
    return new int[0];
int[] rvTmp = new int[1 + (iMax - iMin)];
int n = 0;
for (int i = iMin; i <= iMax; i++) {
...
voidinitParamList(final JList paramList, final String[] availNames, final String[] defaultSelection)
init Param List 
final List selectedValues = paramList.getSelectedValuesList();
paramList.removeAll();
paramList.setListData(availNames);
paramList.setFixedCellWidth(200);
paramList.setMinimumSize(new Dimension(50, 4));
final int size = paramList.getModel().getSize();
final List<Integer> indices = new ArrayList<>(size);
for (Object selectedValue : selectedValues) {
...
voidJListRemoveSelectedObject(javax.swing.JList list)
J List Remove Selected Object 
Object sel = list.getSelectedValue();
if (sel != null) {
    javax.swing.ListModel lm = list.getModel();
    Object[] newList = new Object[lm.getSize() - 1];
    int cur = 0;
    for (int i = 0; i < lm.getSize(); i++) {
        if (lm.getElementAt(i) != sel)
            newList[cur++] = lm.getElementAt(i);
...
voidlinkEnabledToSelected(final JComponent component, final ListSelectionModel model)
Links the enabled state of the specified component to the selected state of the specified ListSelectionModel. 
component.setEnabled(!model.isSelectionEmpty());
model.addListSelectionListener(new ListSelectionListener() {
    @Override
    public void valueChanged(ListSelectionEvent e) {
        if (!e.getValueIsAdjusting())
            component.setEnabled(!model.isSelectionEmpty());
});
...
voidmoveSelectedItems(JList list, int nrRows)
Move selected Items in the JList 
DefaultListModel model = (DefaultListModel) list.getModel();
int[] selection = list.getSelectedIndices();
if (selection.length == 0) {
    return;
Object[] items = new Object[selection.length];
for (int i = selection.length - 1; i >= 0; i--) {
    items[i] = model.remove(selection[i]);
...
voidmoveSourceSelection(JList sourceList, boolean moveDown, boolean byPage)
move Source Selection 
int size = sourceList.getModel().getSize();
if (size > 0) {
    boolean rollOverEnabled = false;
    int index = sourceList.getSelectedIndex();
    int newIndex = 0;
    if (index >= 0) {
        int maxIndex = size - 1;
        int moveBy = byPage ? sourceList.getVisibleRowCount() : 1;
...
voidremoveListSelectionListeners(final JList comp)
Removes the ListSelection Listeners. 
if (comp != null) {
    for (ListSelectionListener l : comp.getListSelectionListeners()) {
        comp.removeListSelectionListener(l);
voidremoveSelectedListItems(JList sourceList)
remove Selected List Items 
int sItemSelectedIndex = sourceList.getSelectedIndex();
Object[] sItemSelectedValues = sourceList.getSelectedValues();
DefaultListModel selectedTableListModel = (DefaultListModel) sourceList.getModel();
if (selectedTableListModel.size() > 0) {
    for (int i = sItemSelectedValues.length - 1; i >= 0; i--) {
        selectedTableListModel.removeElement(sItemSelectedValues[i]);
if (sItemSelectedIndex >= 0) {
    if (sItemSelectedIndex >= selectedTableListModel.size()) {
        sourceList.setSelectedIndex(selectedTableListModel.size() - 1);
    } else {
        sourceList.setSelectedIndex(sItemSelectedIndex);