Observable and ActionListener.. help

Question

Is there anyway to pause update method and continue after I click the �Add Student� button?
The update method is called automatically when my observable object is changed, so I can�t display previous observable information via the button�s ActionListener.
Anyway to do that?
Thanks
import java.util.Observable;
import java.util.Observer;
import java.awt.event.*; //package for event handeler
import java.awt.*;
import javax.swing.*;
public class Lab5Frame extends JFrame implements Observer {     
     private JLabel label;
     private String name;     
     public TestFrame(Observable observable) {
          System.out.println("Windows created.");
          observable.addObserver(this);
     public Lab5Frame(String title) throws HeadlessException {
          super(title);          
          Container c = getContentPane();
          JPanel panel = new JPanel();
          label = new JLabel(name);
          panel.add(this.label);
          JButton button = new JButton("Add Studnet");
          button.addActionListener(new ListName());           
          c.add(button, BorderLayout.NORTH);
          c.add(panel, BorderLayout.CENTER);
          //*** window adapter
          addWindowListener(new WindowAdapter(){
               public void windowClosing(WindowEvent we){
                    System.exit(0);
     private class ListName implements ActionListener{
          public void actionPerformed(ActionEvent event){                    
               //what should I write here to performe the updated information
vai the update method?
     //oberver update     
     public void update(Observable arg0, Object arg1) {     
          System.out.println("LogConsole: " + arg1);
     }

Answer 1

Is there anyway to pause update method and continue after I click the �Add Student� button?
The update method is called automatically when my observable object is changed, so I can�t display previous observable information via the button�s ActionListener.
Anyway to do that?
Thanks
import java.util.Observable;
import java.util.Observer;
import java.awt.event.*; //package for event handeler
import java.awt.*;
import javax.swing.*;
public class Lab5Frame extends JFrame implements Observer {     
     private JLabel label;
     private String name;     
     public TestFrame(Observable observable) {
          System.out.println("Windows created.");
          observable.addObserver(this);
     public Lab5Frame(String title) throws HeadlessException {
          super(title);          
          Container c = getContentPane();
          JPanel panel = new JPanel();
          label = new JLabel(name);
          panel.add(this.label);
          JButton button = new JButton("Add Studnet");
          button.addActionListener(new ListName());           
          c.add(button, BorderLayout.NORTH);
          c.add(panel, BorderLayout.CENTER);
          //*** window adapter
          addWindowListener(new WindowAdapter(){
               public void windowClosing(WindowEvent we){
                    System.exit(0);
     private class ListName implements ActionListener{
          public void actionPerformed(ActionEvent event){                    
               //what should I write here to performe the updated information
vai the update method?
     //oberver update     
     public void update(Observable arg0, Object arg1) {     
          System.out.println("LogConsole: " + arg1);
     }