Example usage for javax.swing DefaultListModel add

Introduction

In this page you can find the example usage for javax.swing DefaultListModel add.

Prototype

public void add(int index, E element) 

Source Link

Document

Inserts the specified element at the specified position in this list.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    DefaultListModel model = new DefaultListModel();
    JList list = new JList(model);

    int pos = 0;/*  w w  w.  j  a va 2 s.  c o m*/
    model.add(pos, "a");
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    // Create a list that allows adds and removes
    DefaultListModel model = new DefaultListModel();
    JList list = new JList(model);

    int pos = list.getModel().getSize();
    model.add(pos, "E");
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    DefaultListModel<String> model = new DefaultListModel<>();
    JList<String> list = new JList<>(model);

    int pos = 0;/*w w  w.java 2 s.  c  o  m*/
    model.add(pos, "a");

    //Insert an item at the beginning
    model.add(pos, "a");

    // Initialize the list with items
    String[] items = { "A", "B", "C", "D" };
    for (int i = 0; i < items.length; i++) {
        model.add(i, items[i]);
    }

    // Replace the 2nd item
    pos = 1;
    model.set(pos, "b");

    // Remove the first item
    model.remove(pos);

    // Remove the last item
    pos = model.getSize() - 1;
    if (pos >= 0) {
        model.remove(pos);
    }

    // Remove all items
    model.clear();
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame f = new JFrame();
    DefaultListModel<String> dlm = new DefaultListModel();
    String[] modelElems = { "Apple", "Orange", "Banana" };
    for (int i = 0; i < modelElems.length; i++)
        dlm.add(i, modelElems[i]);

    JList<String> lstFruitList = new JList(dlm);
    lstFruitList.setVisible(true);/*from  w ww  .  j  a  v a2 s.  com*/

    JPanel p = new JPanel();
    p.add(lstFruitList);
    f.add(p);
    f.setLocation(0, 0);
    f.setSize(400, 400);
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    DefaultListModel model = new DefaultListModel();
    JList list = new JList(model);

    // Initialize the list with items
    String[] items = { "A", "B", "C", "D" };
    for (int i = 0; i < items.length; i++) {
        model.add(i, items[i]);

    }/*from  w  w w .jav  a2  s .com*/
}

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From source file:Main.java

public static void main(String[] args) throws IOException {
    String path = "C:/Pictures/";
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    File folder = new File(path);
    File[] listOfFiles = folder.listFiles();
    DefaultListModel listModel = new DefaultListModel();
    int count = 0;
    for (int i = 0; i < listOfFiles.length; i++) {
        String name = listOfFiles[i].toString();
        if (name.endsWith("jpg")) {
            ImageIcon ii = new ImageIcon(ImageIO.read(listOfFiles[i]));
            listModel.add(count++, ii);
        }//  ww w  . java2s. c  o m
    }
    JList lsm = new JList(listModel);
    lsm.setVisibleRowCount(1);

    frame.add(new JScrollPane(lsm));

    frame.pack();
    frame.setVisible(true);
}

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From source file:ModifyModelSampleModelAction.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Modifying Model");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    // Fill model
    final DefaultListModel model = new DefaultListModel();
    for (int i = 0, n = labels.length; i < n; i++) {
        model.addElement(labels[i]);// w w w .  j  a v a  2 s  .c  om
    }
    JList jlist = new JList(model);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1, BorderLayout.CENTER);

    JButton jb = new JButton("add F");

    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.add(0, "First");
            model.clear();
            model.addElement("Last");
            model.addElement("Last");
            model.addElement("Last");
            model.addElement("Last");

            int size = model.getSize();
            model.insertElementAt("Middle", size / 2);
            model.set(0, "New First");
            model.setElementAt("New Last", size - 1);

            model.remove(0);
            // model.removeAllElements();
            //    model.removeElement("Last");
            //      model.removeElementAt(size / 2);
            //        model.removeRange(0, size / 2);
        }
    });

    frame.add(jb, BorderLayout.SOUTH);

    frame.setSize(640, 300);
    frame.setVisible(true);
}

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From source file:DnDDemo3.java

public static void main(String[] args) {
    JPanel north = new JPanel();
    north.add(new JLabel("Drag from here:"));
    JTextField field = new JTextField(10);
    field.setDragEnabled(true);/*from   w  ww . j a  v a2s  .co  m*/
    north.add(field);

    final DefaultListModel listModel = new DefaultListModel();
    listModel.addElement("first");
    listModel.addElement("second");
    final JList list = new JList(listModel);
    list.setDragEnabled(true);

    list.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor)) {
                return false;
            }
            JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
            if (dl.getIndex() == -1) {
                return false;
            } else {
                return true;
            }
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }

            Transferable transferable = support.getTransferable();
            String data;
            try {
                data = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (Exception e) {
                return false;
            }

            JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
            int index = dl.getIndex();
            if (dl.isInsert()) {
                listModel.add(index, data);
            } else {
                listModel.set(index, data);
            }
            Rectangle r = list.getCellBounds(index, index);
            list.scrollRectToVisible(r);
            return true;
        }
    });
    JScrollPane center = new JScrollPane();
    center.setViewportView(list);

    list.setDropMode(DropMode.USE_SELECTION);
    JPanel cp = new JPanel();
    cp.setLayout(new BorderLayout());
    cp.add(north, BorderLayout.NORTH);
    cp.add(center, BorderLayout.CENTER);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);
}

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From source file:DropModeON.java

public static void main(String[] args) {
    JPanel north = new JPanel();
    north.add(new JLabel("Drag from here:"));
    JTextField field = new JTextField(10);
    field.setDragEnabled(true);//from   w  w w.  j ava 2 s .c om
    north.add(field);

    final DefaultListModel listModel = new DefaultListModel();
    listModel.addElement("first");
    listModel.addElement("second");
    final JList list = new JList(listModel);
    list.setDragEnabled(true);

    list.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor)) {
                return false;
            }
            JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
            if (dl.getIndex() == -1) {
                return false;
            } else {
                return true;
            }
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }

            Transferable transferable = support.getTransferable();
            String data;
            try {
                data = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (Exception e) {
                return false;
            }

            JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
            int index = dl.getIndex();
            if (dl.isInsert()) {
                listModel.add(index, data);
            } else {
                listModel.set(index, data);
            }

            // Scroll to display the element that was dropped
            Rectangle r = list.getCellBounds(index, index);
            list.scrollRectToVisible(r);
            return true;
        }
    });
    JScrollPane center = new JScrollPane();
    center.setViewportView(list);

    list.setDropMode(DropMode.ON);
    JPanel cp = new JPanel();
    cp.setLayout(new BorderLayout());
    cp.add(north, BorderLayout.NORTH);
    cp.add(center, BorderLayout.CENTER);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);
}

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From source file:DropModeON_OR_INSERT.java

public static void main(String[] args) {
    JPanel north = new JPanel();
    north.add(new JLabel("Drag from here:"));
    JTextField field = new JTextField(10);
    field.setDragEnabled(true);/*from   ww  w . j a v  a 2s  .  com*/
    north.add(field);

    final DefaultListModel listModel = new DefaultListModel();
    listModel.addElement("first");
    listModel.addElement("second");
    final JList list = new JList(listModel);
    list.setDragEnabled(true);

    list.setTransferHandler(new TransferHandler() {
        public boolean canImport(TransferHandler.TransferSupport support) {
            if (!support.isDataFlavorSupported(DataFlavor.stringFlavor)) {
                return false;
            }
            JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
            if (dl.getIndex() == -1) {
                return false;
            } else {
                return true;
            }
        }

        public boolean importData(TransferHandler.TransferSupport support) {
            if (!canImport(support)) {
                return false;
            }

            Transferable transferable = support.getTransferable();
            String data;
            try {
                data = (String) transferable.getTransferData(DataFlavor.stringFlavor);
            } catch (Exception e) {
                return false;
            }

            JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
            int index = dl.getIndex();
            if (dl.isInsert()) {
                listModel.add(index, data);
            } else {
                listModel.set(index, data);
            }

            // Scroll to display the element that was dropped
            Rectangle r = list.getCellBounds(index, index);
            list.scrollRectToVisible(r);
            return true;
        }
    });
    JScrollPane center = new JScrollPane();
    center.setViewportView(list);

    list.setDropMode(DropMode.ON_OR_INSERT);
    JPanel cp = new JPanel();
    cp.setLayout(new BorderLayout());
    cp.add(north, BorderLayout.NORTH);
    cp.add(center, BorderLayout.CENTER);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);
}

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