import javax.swing. *; import java.awt.*; import java.awt.event. *; public class FinalGUI { JButton startButton, stopButton; JLabel label; public (1) { JFrame f = new JFrame ("SwingApp2"); f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); //1.3+ createGUI (f); initListeners (); (2) f.setVisible ( (3) } void initListeners () { ActionListener action1 = new MyActionListener(); startButton.addActionListener stopButton.addActionListener( (action1); (4) } class MyActionListener implements (5) { public void action Performed (ActionEvent e) { if (e.getSource () == startButton) { startButton.setEnabled( (6) ); stopButton.setEnabled( (7) ); label.setText ("Press Stop."); } else { stopButton.setEnabled( (8) ); (9); label.setText ("Press Start."); startButton = new JButton ("Start"); stopButton = new JButton ("Stop"); stopButton.setEnabled(false); (10) Container c = f.getContentPane (); c.add(startButton, BorderLayout.WEST); c.add(stopButton, BorderLayout.EAST); c.add(label, BorderLayout.SOUTH); } public static void main(String[] args) { new FinalGUI (); } SAMPLE OUTPUT: ●●● FinalGUI Start Stop Click Start. } void createGUI (JFrame f) { = new JLabel("Press Start.", JLabel.CENTER); ●●● FinalGUI Start Stop Click Stop.
import javax.swing. *; import java.awt.*; import java.awt.event. *; public class FinalGUI { JButton startButton, stopButton; JLabel label; public (1) { JFrame f = new JFrame ("SwingApp2"); f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); //1.3+ createGUI (f); initListeners (); (2) f.setVisible ( (3) } void initListeners () { ActionListener action1 = new MyActionListener(); startButton.addActionListener stopButton.addActionListener( (action1); (4) } class MyActionListener implements (5) { public void action Performed (ActionEvent e) { if (e.getSource () == startButton) { startButton.setEnabled( (6) ); stopButton.setEnabled( (7) ); label.setText ("Press Stop."); } else { stopButton.setEnabled( (8) ); (9); label.setText ("Press Start."); startButton = new JButton ("Start"); stopButton = new JButton ("Stop"); stopButton.setEnabled(false); (10) Container c = f.getContentPane (); c.add(startButton, BorderLayout.WEST); c.add(stopButton, BorderLayout.EAST); c.add(label, BorderLayout.SOUTH); } public static void main(String[] args) { new FinalGUI (); } SAMPLE OUTPUT: ●●● FinalGUI Start Stop Click Start. } void createGUI (JFrame f) { = new JLabel("Press Start.", JLabel.CENTER); ●●● FinalGUI Start Stop Click Stop.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Based on the given program and the sample output, please provide the missing code.
![import javax.swing.*;
import java.awt. *;
import java.awt.event. *;
public class FinalGUI {
JButton startButton, stopButton;
JLabel label;
public
(1)
{
JFrame f= new JFrame ("SwingApp2");
f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); //1.3+
createGUI (f);
initListeners ();
(2)
f.setVisible ( (3)____);
}
void initListeners () {
ActionListener action1 = new MyActionListener();
startButton.addActionListener
stopButton.addActionListener(
(action1);
(4) );
}
(5)
{
class MyActionListener implements
public void action Performed (ActionEvent e) {
if (e.getSource () == startButton) {
startButton.setEnabled( (6)
stopButton.setEnabled( (7) );
label.setText ("Press Stop.");
} else {
stopButton.setEnabled( (8) );
(9) ;
label.setText ("Press Start.");
startButton = new JButton ("Start");
stopButton = new JButton ("Stop");
stopButton.setEnabled(false);
(10)
Container c = f.getContentPane ();
c.add(startButton, BorderLayout.WEST);
c.add(stopButton, BorderLayout. EAST);
c.add(label, BorderLayout.SOUTH);
}
public static void main(String[] args) {
new FinalGUI ();
}
}
SAMPLE OUTPUT:
FinalGUI
Start
Stop
void createGUI (JFrame f) {
= new JLabel("Press Start.", JLabel.CENTER);
Click Start.
●●● FinalGUI
Start
Stop
Click Stop.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F45fe4c57-b0e6-4485-95b7-0010badb1350%2Ffaf20955-1383-4806-aeaf-5132938add9c%2F1scgx7v_processed.png&w=3840&q=75)
Transcribed Image Text:import javax.swing.*;
import java.awt. *;
import java.awt.event. *;
public class FinalGUI {
JButton startButton, stopButton;
JLabel label;
public
(1)
{
JFrame f= new JFrame ("SwingApp2");
f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); //1.3+
createGUI (f);
initListeners ();
(2)
f.setVisible ( (3)____);
}
void initListeners () {
ActionListener action1 = new MyActionListener();
startButton.addActionListener
stopButton.addActionListener(
(action1);
(4) );
}
(5)
{
class MyActionListener implements
public void action Performed (ActionEvent e) {
if (e.getSource () == startButton) {
startButton.setEnabled( (6)
stopButton.setEnabled( (7) );
label.setText ("Press Stop.");
} else {
stopButton.setEnabled( (8) );
(9) ;
label.setText ("Press Start.");
startButton = new JButton ("Start");
stopButton = new JButton ("Stop");
stopButton.setEnabled(false);
(10)
Container c = f.getContentPane ();
c.add(startButton, BorderLayout.WEST);
c.add(stopButton, BorderLayout. EAST);
c.add(label, BorderLayout.SOUTH);
}
public static void main(String[] args) {
new FinalGUI ();
}
}
SAMPLE OUTPUT:
FinalGUI
Start
Stop
void createGUI (JFrame f) {
= new JLabel("Press Start.", JLabel.CENTER);
Click Start.
●●● FinalGUI
Start
Stop
Click Stop.
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