import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JPasswordField;
public class Main extends JFrame {
JPasswordField field = new JPasswordField("*", 10);
public Main() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
field.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Field=" + field.getText());
}
});
getContentPane().add(field);
pack();
setVisible(true);
}
public static void main(String arg[]) {
new Main();
}
}