program for JRiddle.java
package riddle;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Riddle implements ActionListener {
private final String LABEL_TEXT = \"What is your longterm goal?\";
JFrame frame;
JPanel contentPane;
JLabel label, label1;
JButton button;
JButton button1;
private static int i;
public Riddle() {
/* Create and set up the frame */
frame = new JFrame(LABEL_TEXT);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/* Create a content pane with a GridLayout and empty borders */
contentPane = new JPanel();
contentPane.setLayout(new GridLayout(0, 2, 10, 5));
/* Create and add label that is centered and has empty borders */
label = new JLabel(\"Why did the chicken cross the road?\");
label.setAlignmentX(JButton.LEFT_ALIGNMENT);
label.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPane.add(label);
label1 = new JLabel(\" \");
label1.setAlignmentX(JButton.LEFT_ALIGNMENT);
label1.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPane.add(label1);
/* Create and add button that is centered */
button = new JButton(\"Answer\");
button.setAlignmentX(JButton.RIGHT_ALIGNMENT);
button.setActionCommand(\"Show Answer\");
button.addActionListener(this);
contentPane.add(button);
/* Add content pane to frame */
frame.setContentPane(contentPane);
/* Size and then display the frame */
frame.pack();
frame.setVisible(true);
}
/** Handle button click action event
* pre:
* post: clicked button shows answer
*/
public void actionPerformed(ActionEvent event) {
String eventName = event.getActionCommand();
if (eventName.equals(\"Show Answer\")) {
label1.setText(\"To become architect \");
label1.setFont(new Font(\"Serif\",Font.PLAIN,30));
button.setText(\"Answer\");
button.setActionCommand(\"Answer\");
}
}
/**
* Create and show the GUI
*/
private static void runGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
Riddle greeting = new Riddle();
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
runGUI();
}
});
}
}
output:
what is your longterm goal? architectanswer
Solution
program for JRiddle.java
package riddle;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Riddle implements ActionListener {
private final String LABEL_TEXT = \"What is your longterm goal?\";
JFrame frame;
JPanel contentPane;
JLabel label, label1;
JButton button;
JButton button1;
private static int i;
public Riddle() {
/* Create and set up the frame */
frame = new JFrame(LABEL_TEXT);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/* Create a content pane with a GridLayout and empty borders */
contentPane = new JPanel();
contentPane.setLayout(new GridLayout(0, 2, 10, 5));
/* Create and add label that is centered and has empty borders */
label = new JLabel(\"Why did the chicken cross the road?\");
label.setAlignmentX(JButton.LEFT_ALIGNMENT);
label.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPa.
program for JRiddle.javapackage riddle;import javax.swing.; i.pdf
1. program for JRiddle.java
package riddle;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Riddle implements ActionListener {
private final String LABEL_TEXT = "What is your longterm goal?";
JFrame frame;
JPanel contentPane;
JLabel label, label1;
JButton button;
JButton button1;
private static int i;
public Riddle() {
/* Create and set up the frame */
frame = new JFrame(LABEL_TEXT);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/* Create a content pane with a GridLayout and empty borders */
contentPane = new JPanel();
contentPane.setLayout(new GridLayout(0, 2, 10, 5));
/* Create and add label that is centered and has empty borders */
label = new JLabel("Why did the chicken cross the road?");
label.setAlignmentX(JButton.LEFT_ALIGNMENT);
label.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPane.add(label);
label1 = new JLabel(" ");
label1.setAlignmentX(JButton.LEFT_ALIGNMENT);
label1.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPane.add(label1);
/* Create and add button that is centered */
button = new JButton("Answer");
button.setAlignmentX(JButton.RIGHT_ALIGNMENT);
button.setActionCommand("Show Answer");
button.addActionListener(this);
2. contentPane.add(button);
/* Add content pane to frame */
frame.setContentPane(contentPane);
/* Size and then display the frame */
frame.pack();
frame.setVisible(true);
}
/** Handle button click action event
* pre:
* post: clicked button shows answer
*/
public void actionPerformed(ActionEvent event) {
String eventName = event.getActionCommand();
if (eventName.equals("Show Answer")) {
label1.setText("To become architect ");
label1.setFont(new Font("Serif",Font.PLAIN,30));
button.setText("Answer");
button.setActionCommand("Answer");
}
}
/**
* Create and show the GUI
*/
private static void runGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
Riddle greeting = new Riddle();
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
runGUI();
}
});
}
}
output:
3. what is your longterm goal? architectanswer
Solution
program for JRiddle.java
package riddle;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Riddle implements ActionListener {
private final String LABEL_TEXT = "What is your longterm goal?";
JFrame frame;
JPanel contentPane;
JLabel label, label1;
JButton button;
JButton button1;
private static int i;
public Riddle() {
/* Create and set up the frame */
frame = new JFrame(LABEL_TEXT);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/* Create a content pane with a GridLayout and empty borders */
contentPane = new JPanel();
contentPane.setLayout(new GridLayout(0, 2, 10, 5));
/* Create and add label that is centered and has empty borders */
label = new JLabel("Why did the chicken cross the road?");
label.setAlignmentX(JButton.LEFT_ALIGNMENT);
label.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPane.add(label);
label1 = new JLabel(" ");
label1.setAlignmentX(JButton.LEFT_ALIGNMENT);
label1.setBorder(BorderFactory.createEmptyBorder(20, 50, 20, 50));
contentPane.add(label1);
/* Create and add button that is centered */
button = new JButton("Answer");
4. button.setAlignmentX(JButton.RIGHT_ALIGNMENT);
button.setActionCommand("Show Answer");
button.addActionListener(this);
contentPane.add(button);
/* Add content pane to frame */
frame.setContentPane(contentPane);
/* Size and then display the frame */
frame.pack();
frame.setVisible(true);
}
/** Handle button click action event
* pre:
* post: clicked button shows answer
*/
public void actionPerformed(ActionEvent event) {
String eventName = event.getActionCommand();
if (eventName.equals("Show Answer")) {
label1.setText("To become architect ");
label1.setFont(new Font("Serif",Font.PLAIN,30));
button.setText("Answer");
button.setActionCommand("Answer");
}
}
/**
* Create and show the GUI
*/
private static void runGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
Riddle greeting = new Riddle();
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
runGUI();
}
});
![contentPane.add(button);
/* Add content pane to frame */
frame.setContentPane(contentPane);
/* Size and then display the frame */
frame.pack();
frame.setVisible(true);
}
/** Handle button click action event
* pre:
* post: clicked button shows answer
*/
public void actionPerformed(ActionEvent event) {
String eventName = event.getActionCommand();
if (eventName.equals("Show Answer")) {
label1.setText("To become architect ");
label1.setFont(new Font("Serif",Font.PLAIN,30));
button.setText("Answer");
button.setActionCommand("Answer");
}
}
/**
* Create and show the GUI
*/
private static void runGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
Riddle greeting = new Riddle();
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
runGUI();
}
});
}
}
output:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)