Java DefaultListSelectionModel .isSelectedIndex (int index)
Syntax
DefaultListSelectionModel.isSelectedIndex(int index) has the following syntax.
public boolean isSelectedIndex(int index)
Example
In the following code shows how to use DefaultListSelectionModel.isSelectedIndex(int index) method.
/*from w w w . jav a 2 s . c o m*/
import java.awt.BorderLayout;
import javax.swing.DefaultListSelectionModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class Main extends JPanel {
String label[] = { "Zero", "One", "Two" };
JList list;
public Main() {
setLayout(new BorderLayout());
list = new JList(label);
JScrollPane pane = new JScrollPane(list);
DefaultListSelectionModel m = new DefaultListSelectionModel();
m.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
System.out.println(e.toString());
}
});
list.setSelectionModel(m);
System.out.println(m.isSelectedIndex(0));
add(pane, BorderLayout.NORTH);
}
public static void main(String s[]) {
JFrame frame = new JFrame("List Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(new Main());
frame.pack();
frame.setVisible(true);
}
}
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