Java JList .addListSelectionListener (ListSelectionListener listener)
Syntax
JList.addListSelectionListener(ListSelectionListener listener) has the following syntax.
public void addListSelectionListener(ListSelectionListener listener)
Example
In the following code shows how to use JList.addListSelectionListener(ListSelectionListener listener) method.
// w w w . j a v a 2 s . com
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.util.ArrayList;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class Main extends JFrame {
JList list = null;
Main() {
Container cp = getContentPane();
cp.setLayout(new FlowLayout());
ArrayList data = new ArrayList();
data.add("Hi");
data.add("Hello");
data.add("Goodbye");
list = new JList(data.toArray());
list.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent evt) {
if (evt.getValueIsAdjusting())
return;
System.out.println("Selected from " + evt.getFirstIndex() + " to " + evt.getLastIndex());
}
});
cp.add(new JScrollPane(list), BorderLayout.CENTER);
}
public static void main(String[] s) {
Main l = new Main();
l.pack();
l.setVisible(true);
}
}
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