glynco
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How can I add a Listener that responds to ENTER key?
How can I add a Listener that responds to ENTER key instead of clicking Print button?
// SimpleList.java
//
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class NewClass extends JPanel {
String label[] = { "Zero","One","Two","Three","Four","Five","Six",
"Seven","Eight","Nine","Ten","Eleven" };
JList list;
public NewClass( ) {
this.setLayout(new BorderLayout( ));
list = new JList(label);
JScrollPane pane = new JScrollPane(list);
JButton button = new JButton("Print");
button.addActionListener(new PrintListener( ));
add(pane, BorderLayout.CENTER);
add(button, BorderLayout.SOUTH);
}
class PrintListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
int selected[] = list.getSelectedIndices( );
System.out.println("Selected Elements: ");
for (int i=0; i < selected.length; i++) {
String element =
(String)list.getModel( ).getElementAt(selected[i]);
System.out.println(" " + element);
}
}
}
public static void main(String s[]) {
JFrame frame = new JFrame("Simple List Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(new NewClass( ));
frame.setSize(250, 200);
frame.setVisible(true);
}
}
// An inner class to respond to clicks of the Print button
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