Example usage for javax.swing JList addListSelectionListener

Introduction

In this page you can find the example usage for javax.swing JList addListSelectionListener.

Prototype

public void addListSelectionListener(ListSelectionListener listener) 

Source Link

Document

Adds a listener to the list, to be notified each time a change to the selection occurs; the preferred way of listening for selection state changes.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String[] items = { "A", "B", "C", "D" };
    JList list = new JList(items);
    list.addListSelectionListener(new MyListSelectionListener());
}

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From source file:Main.java

public static void main(String args[]) {
    JFrame f = new JFrame();
    f.setSize(new Dimension(300, 300));
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setLayout(new FlowLayout());
    JLabel label = new JLabel("Update");
    String[] data = { "one", "two", "three", "four" };
    JList<String> dataList = new JList<>(data);

    dataList.addListSelectionListener(new ListSelectionListener() {

        @Override//from  w ww . ja v a  2 s .com
        public void valueChanged(ListSelectionEvent arg0) {
            if (!arg0.getValueIsAdjusting()) {
                label.setText(dataList.getSelectedValue().toString());
            }
        }
    });
    f.add(new JScrollPane(dataList));
    f.add(label);

    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    String[] items = { "item1", "item2", "item1" };
    JList<String> list = new JList<>(items);
    JTextField output = new JTextField(15);
    JPanel gui = new JPanel();
    gui.add(list);/* w ww  . ja va  2  s. c o m*/
    gui.add(output);
    list.addListSelectionListener(new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent lse) {
            int index = list.getSelectedIndex();
            String outputText = "Index: " + index + "  Value: " + items[index];
            output.setText(outputText);
        }
    });
    JOptionPane.showMessageDialog(null, gui);
}

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From source file:Main.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1);//from w ww  .java  2s  .  c  om

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            Object[] objs = jlist.getSelectedValues();
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1);/*from ww  w  .j a va  2  s.co  m*/

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            List objs = jlist.getSelectedValuesList();
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1);// w w w  . j  a va2  s .  co  m

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            System.out.println(jlist.getSelectedValue());
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1);/*w w w  . j  a  va2 s  .  com*/

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            System.out.println(jlist.getSelectedIndex());
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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From source file:MainClass.java

public static void main(final String args[]) {
    final String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1);/*  w w  w .ja v a2 s.  c om*/

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            System.out.println("First index: " + listSelectionEvent.getFirstIndex());
            System.out.println(", Last index: " + listSelectionEvent.getLastIndex());
            boolean adjust = listSelectionEvent.getValueIsAdjusting();
            System.out.println(", Adjusting? " + adjust);
            if (!adjust) {
                JList list = (JList) listSelectionEvent.getSource();
                int selections[] = list.getSelectedIndices();
                Object selectedValues[] = list.getSelectedValues();
                for (int i = 0, n = selections.length; i < n; i++) {
                    if (i == 0) {
                        System.out.println("  Selections: ");
                    }
                    System.out.println(selections[i] + "/" + selectedValues[i] + " ");
                }
            }
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {
    String labels[] = { "A", "B", "C", "D", "E", "F", "G", "H" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1, BorderLayout.CENTER);

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            System.out.println("First index: " + listSelectionEvent.getFirstIndex());
            System.out.println(", Last index: " + listSelectionEvent.getLastIndex());
            boolean adjust = listSelectionEvent.getValueIsAdjusting();
            System.out.println(", Adjusting? " + adjust);
            if (!adjust) {
                JList list = (JList) listSelectionEvent.getSource();
                int selections[] = list.getSelectedIndices();
                Object selectionValues[] = list.getSelectedValues();
                for (int i = 0, n = selections.length; i < n; i++) {
                    if (i == 0) {
                        System.out.println(" Selections: ");
                    }//from w ww.ja  v a2s  .  c  o  m
                    System.out.println(selections[i] + "/" + selectionValues[i] + " ");
                }
            }
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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From source file:SelectingJListSample.java

public static void main(String args[]) {
    String labels[] = { "A", "B", "C", "D", "E", "F", "G", "H", "I", "J" };
    JFrame frame = new JFrame("Selecting JList");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();

    JList jlist = new JList(labels);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    contentPane.add(scrollPane1, BorderLayout.WEST);

    ListSelectionListener listSelectionListener = new ListSelectionListener() {
        public void valueChanged(ListSelectionEvent listSelectionEvent) {
            System.out.print("First index: " + listSelectionEvent.getFirstIndex());
            System.out.print(", Last index: " + listSelectionEvent.getLastIndex());
            boolean adjust = listSelectionEvent.getValueIsAdjusting();
            System.out.println(", Adjusting? " + adjust);
            if (!adjust) {
                JList list = (JList) listSelectionEvent.getSource();
                int selections[] = list.getSelectedIndices();
                Object selectionValues[] = list.getSelectedValues();
                for (int i = 0, n = selections.length; i < n; i++) {
                    if (i == 0) {
                        System.out.print("  Selections: ");
                    }//from  ww w .  j  a v a2s.c om
                    System.out.print(selections[i] + "/" + selectionValues[i] + " ");
                }
                System.out.println();
            }
        }
    };
    jlist.addListSelectionListener(listSelectionListener);

    MouseListener mouseListener = new MouseAdapter() {
        public void mouseClicked(MouseEvent mouseEvent) {
            JList theList = (JList) mouseEvent.getSource();
            if (mouseEvent.getClickCount() == 2) {
                int index = theList.locationToIndex(mouseEvent.getPoint());
                if (index >= 0) {
                    Object o = theList.getModel().getElementAt(index);
                    System.out.println("Double-clicked on: " + o.toString());
                }
            }
        }
    };
    jlist.addMouseListener(mouseListener);

    frame.setSize(350, 200);
    frame.setVisible(true);
}

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