Think...Idea...Explore...: June 2013

I made a simple game named Quiz Game in java swing. I wanted a inbuilt memory database because if I give this game any of my friend who does not have any DB(Oracle, MySQL, MS SQL Server), can not play this game and most important external JDBC is not required here(in any other computers), so I chose SQLite database. So you think where is the DB? Yes, after executing the java file, it will be created automatically in .db extension. I have done this project in NetBeans IDE 7.0. Here is the code.

CrorepatiView.java.

/*
* Created By...
* Santanu Kar
*/

package crorepati;

import org.jdesktop.application.Action;
import org.jdesktop.application.ResourceMap;
import org.jdesktop.application.SingleFrameApplication;
import org.jdesktop.application.FrameView;
import org.jdesktop.application.TaskMonitor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Timer;
import javax.swing.Icon;
import javax.swing.JDialog;
import javax.swing.JFrame;
import java.sql.*;
import java.util.*;
import java.awt.Color;

/**
* The application's main frame.
*/
public class CrorepatiView extends FrameView {

public CrorepatiView(SingleFrameApplication app) {
super(app);

initComponents();

// status bar initialization - message timeout, idle icon and busy animation, etc
ResourceMap resourceMap = getResourceMap();
int messageTimeout = resourceMap.getInteger("StatusBar.messageTimeout");
messageTimer = new Timer(messageTimeout, new ActionListener() {
public void actionPerformed(ActionEvent e) {
statusMessageLabel.setText("");
}
});
messageTimer.setRepeats(false);
int busyAnimationRate = resourceMap.getInteger("StatusBar.busyAnimationRate");
for (int i = 0; i < busyIcons.length; i++) {
busyIcons[i] = resourceMap.getIcon("StatusBar.busyIcons[" + i + "]");
}
busyIconTimer = new Timer(busyAnimationRate, new ActionListener() {
public void actionPerformed(ActionEvent e) {
busyIconIndex = (busyIconIndex + 1) % busyIcons.length;
statusAnimationLabel.setIcon(busyIcons[busyIconIndex]);
}
});
idleIcon = resourceMap.getIcon("StatusBar.idleIcon");
statusAnimationLabel.setIcon(idleIcon);
progressBar.setVisible(false);

// connecting action tasks to status bar via TaskMonitor
TaskMonitor taskMonitor = new TaskMonitor(getApplication().getContext());
taskMonitor.addPropertyChangeListener(new java.beans.PropertyChangeListener() {
public void propertyChange(java.beans.PropertyChangeEvent evt) {
String propertyName = evt.getPropertyName();
if ("started".equals(propertyName)) {
if (!busyIconTimer.isRunning()) {
statusAnimationLabel.setIcon(busyIcons[0]);
busyIconIndex = 0;
busyIconTimer.start();
}
progressBar.setVisible(true);
progressBar.setIndeterminate(true);
} else if ("done".equals(propertyName)) {
busyIconTimer.stop();
statusAnimationLabel.setIcon(idleIcon);
progressBar.setVisible(false);
progressBar.setValue(0);
} else if ("message".equals(propertyName)) {
String text = (String)(evt.getNewValue());
statusMessageLabel.setText((text == null) ? "" : text);
messageTimer.restart();
} else if ("progress".equals(propertyName)) {
int value = (Integer)(evt.getNewValue());
progressBar.setVisible(true);
progressBar.setIndeterminate(false);
progressBar.setValue(value);
}
}
});

setQuestion();
}

void createDatabase(){
try{
// load the sqlite-JDBC driver using the current class loader
Class.forName("org.sqlite.JDBC");
Connection connection = null;
connection = DriverManager.getConnection("jdbc:sqlite:game.db");
Statement statement = connection.createStatement();
try
{
statement.setQueryTimeout(30); // set timeout to 30 sec.
rs = statement.executeQuery("select * from questions");
while(rs.next())
{
// read the result set
System.out.println("id = " + rs.getInt("id"));
System.out.println("question = " + rs.getString("question"));
System.out.println("ans1 = " + rs.getString("ans1"));
System.out.println("ans2 = " + rs.getString("ans2"));
System.out.println("ans3 = " + rs.getString("ans3"));
System.out.println("ans4 = " + rs.getString("ans4"));
System.out.println("answer = " + rs.getInt("answer"));
}
}
catch(SQLException e)
{
// if the error message is "out of memory",
// it probably means no database file is found
//System.err.println(e.getMessage());
try{
statement = connection.createStatement();
statement.executeUpdate("create table questions (id integer, question string, ans1 string, ans2 string, ans3 string, ans4 string, answer integer)");
statement.executeUpdate("insert into questions values(1, 'Antyodaya scheme is meant to help the', 'Muslims', 'Minorities', 'Poorest of the poor section of the society', 'Harijans', 3)");
statement.executeUpdate("insert into questions values(2, 'Name the Indian telecom service company which had acquired US firm WPCS International?', 'BSNL', 'MTNL', 'Tata Teleservices', 'Kavvery Telecom', 4)");
}
catch(Exception ex){
ex.printStackTrace();
}
}
finally
{
try
{
if(connection != null)
connection.close();
}
catch(SQLException e)
{
// connection close failed.
System.err.println(e);
}
}
}
catch(Exception e){
e.printStackTrace();
}
}

void setQuestion(){
System.out.println("setQuention() called");
setOtherEnable();
LTimer.setText("30");
time_count=30;
ans_clicked=true;
sc = new StopClock(this);
Thread th = new Thread(sc);
th.start();
try{
Class.forName("org.sqlite.JDBC");
conn = DriverManager.getConnection("jdbc:sqlite:game.db");
if(conn != null) {
q_id=showRandomInteger(1, 2, randomGenerator);
System.out.println("Q-ID is " + q_id);
String query = "select * from questions where id=?";
ps = conn.prepareStatement(query);
ps.setInt(1,q_id);
rs = ps.executeQuery();
if(rs.next()){
System.out.println("!!!!!!!!!!!!!!");
LQuestion.setText(rs.getString(2));
BAns1.setText(rs.getString(3));
BAns2.setText(rs.getString(4));
BAns3.setText(rs.getString(5));
BAns4.setText(rs.getString(6));
correct_ans=rs.getInt(7);
}
else {
System.out.println("**************");
}
conn.close();
}
else {
System.out.println("Connection problem, please try again");
}
}
catch(Exception ex){
ex.printStackTrace();
try{
Statement statement = conn.createStatement();
statement = conn.createStatement();
statement.executeUpdate("create table questions (id integer, question string, ans1 string, ans2 string, ans3 string, ans4 string, answer integer)");
statement.executeUpdate("insert into questions values(1, 'Antyodaya scheme is meant to help the', 'Muslims', 'Minorities', 'Poorest of the poor section of the society', 'Harijans', 3)");
statement.executeUpdate("insert into questions values(2, 'Name the Indian telecom service company which had acquired US firm WPCS International?', 'BSNL', 'MTNL', 'Tata Teleservices', 'Kavvery Telecom', 4)");
}
catch(Exception exx){
exx.printStackTrace();
}
}
//startTimer();
}

void getAnswer(int ans){
System.out.println("\ngetAnswer(int ans) called.");
ans_clicked=false;
System.out.println("######ans_clicked:"+ans_clicked);
setOtherDisable();
setButtonDisable();
//coloring green to correct ans
if(correct_ans==1){
BNext.setEnabled(true);
BAns1.setBackground(new Color(0,102,51));
BAns1.setForeground(new Color(0,102,51));
}
else if(correct_ans==2){
BNext.setEnabled(true);
BAns2.setBackground(new Color(0,102,51));
BAns2.setForeground(new Color(0,102,51));
}
else if(correct_ans==3){
BNext.setEnabled(true);
BAns3.setBackground(new Color(0,102,51));
BAns3.setForeground(new Color(0,102,51));
}
else{
BNext.setEnabled(true);
BAns4.setBackground(new Color(0,102,51));
BAns4.setForeground(new Color(0,102,51));
}

//coloring red to incorrect ans
if(correct_ans!=ans){
System.out.println("Wrong ans");
if(ans==1){
BNext.setEnabled(false);
BAns1.setBackground(new Color(255,0,0));
BAns1.setForeground(new Color(255,0,0));
}
else if(ans==2){
BNext.setEnabled(false);
BAns2.setBackground(new Color(255,0,0));
BAns2.setForeground(new Color(255,0,0));
}
else if(ans==3){
BNext.setEnabled(false);
BAns3.setBackground(new Color(255,0,0));
BAns3.setForeground(new Color(255,0,0));
}
else{
BNext.setEnabled(false);
BAns4.setBackground(new Color(255,0,0));
BAns4.setForeground(new Color(255,0,0));
}
}
else{
System.out.println("Correct ans");
//BNext.setEnabled(true);
}
}

private static int showRandomInteger(int aStart, int aEnd, Random aRandom){
if ( aStart > aEnd ) {
throw new IllegalArgumentException("Start cannot exceed End.");
}
//get the range, casting to long to avoid overflow problems
long range = (long)aEnd - (long)aStart + 1;
// compute a fraction of the range, 0 <= frac < range
long fraction = (long)(range * aRandom.nextDouble());
int randomNumber = (int)(fraction + aStart);
log("Generated : " + randomNumber);
return randomNumber;
}

private static void log(String aMessage){
System.out.println(aMessage);
}

void setHelpDisable(){
if(!BFifty_fifty.isVisible() && !BBar_chart.isVisible())
LEnd_help.setVisible(true);
}

void setButtonDisable(){
BAns1.setEnabled(false);
BAns2.setEnabled(false);
BAns3.setEnabled(false);
BAns4.setEnabled(false);
//ans_clicked=false;
}

void setOtherDisable(){
BNext.setEnabled(true);
BFifty_fifty.setEnabled(false);
BBar_chart.setEnabled(false);
}

void setOtherEnable(){
BNext.setEnabled(false);
BFifty_fifty.setEnabled(true);
BBar_chart.setEnabled(true);
}

@Action
public void showAboutBox() {
if (aboutBox == null) {
JFrame mainFrame = CrorepatiApp.getApplication().getMainFrame();
aboutBox = new CrorepatiAboutBox(mainFrame);
aboutBox.setLocationRelativeTo(mainFrame);
}
CrorepatiApp.getApplication().show(aboutBox);
}

/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

mainPanel = new javax.swing.JPanel();
LWelcome = new javax.swing.JLabel();
LImg = new javax.swing.JLabel();
LHelp = new javax.swing.JLabel();
BFifty_fifty = new javax.swing.JButton();
BBar_chart = new javax.swing.JButton();
LTimer = new javax.swing.JLabel();
LQuestion = new javax.swing.JLabel();
BAns1 = new javax.swing.JButton();
BAns2 = new javax.swing.JButton();
BAns3 = new javax.swing.JButton();
BAns4 = new javax.swing.JButton();
BQuit = new javax.swing.JButton();
BNext = new javax.swing.JButton();
LRs10 = new javax.swing.JLabel();
LRs9 = new javax.swing.JLabel();
LRs8 = new javax.swing.JLabel();
LRs7 = new javax.swing.JLabel();
LRs6 = new javax.swing.JLabel();
LRs5 = new javax.swing.JLabel();
LRs4 = new javax.swing.JLabel();
LRs3 = new javax.swing.JLabel();
LRs2 = new javax.swing.JLabel();
LRs1 = new javax.swing.JLabel();
LEnd_help = new javax.swing.JLabel();
menuBar = new javax.swing.JMenuBar();
javax.swing.JMenu fileMenu = new javax.swing.JMenu();
javax.swing.JMenuItem exitMenuItem = new javax.swing.JMenuItem();
javax.swing.JMenu helpMenu = new javax.swing.JMenu();
javax.swing.JMenuItem aboutMenuItem = new javax.swing.JMenuItem();
statusPanel = new javax.swing.JPanel();
javax.swing.JSeparator statusPanelSeparator = new javax.swing.JSeparator();
statusMessageLabel = new javax.swing.JLabel();
statusAnimationLabel = new javax.swing.JLabel();
progressBar = new javax.swing.JProgressBar();

org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(crorepati.CrorepatiApp.class).getContext().getResourceMap(CrorepatiView.class);
mainPanel.setBackground(resourceMap.getColor("mainPanel.background")); // NOI18N
mainPanel.setBorder(javax.swing.BorderFactory.createCompoundBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED), javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))));
mainPanel.setName("mainPanel"); // NOI18N

LWelcome.setFont(resourceMap.getFont("LWelcome.font")); // NOI18N
LWelcome.setForeground(resourceMap.getColor("LWelcome.foreground")); // NOI18N
LWelcome.setText(resourceMap.getString("LWelcome.text")); // NOI18N
LWelcome.setName("LWelcome"); // NOI18N

LImg.setBackground(resourceMap.getColor("LImg.background")); // NOI18N
LImg.setIcon(resourceMap.getIcon("LImg.icon")); // NOI18N
LImg.setText(resourceMap.getString("LImg.text")); // NOI18N
LImg.setName("LImg"); // NOI18N

LHelp.setFont(resourceMap.getFont("LHelp.font")); // NOI18N
LHelp.setForeground(resourceMap.getColor("LHelp.foreground")); // NOI18N
LHelp.setText(resourceMap.getString("LHelp.text")); // NOI18N
LHelp.setName("LHelp"); // NOI18N

BFifty_fifty.setBackground(resourceMap.getColor("BFifty_fifty.background")); // NOI18N
BFifty_fifty.setForeground(resourceMap.getColor("BFifty_fifty.foreground")); // NOI18N
BFifty_fifty.setIcon(resourceMap.getIcon("BFifty_fifty.icon")); // NOI18N
BFifty_fifty.setText(resourceMap.getString("BFifty_fifty.text")); // NOI18N
BFifty_fifty.setName("BFifty_fifty"); // NOI18N
BFifty_fifty.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BFifty_fiftyActionPerformed(evt);
}
});

BBar_chart.setBackground(resourceMap.getColor("BBar_chart.background")); // NOI18N
BBar_chart.setIcon(resourceMap.getIcon("BBar_chart.icon")); // NOI18N
BBar_chart.setText(resourceMap.getString("BBar_chart.text")); // NOI18N
BBar_chart.setName("BBar_chart"); // NOI18N
BBar_chart.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BBar_chartActionPerformed(evt);
}
});

LTimer.setText(resourceMap.getString("LTimer.text")); // NOI18N
LTimer.setName("LTimer"); // NOI18N

LQuestion.setText(resourceMap.getString("LQuestion.text")); // NOI18N
LQuestion.setName("LQuestion"); // NOI18N

BAns1.setText(resourceMap.getString("BAns1.text")); // NOI18N
BAns1.setName("BAns1"); // NOI18N
BAns1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BAns1ActionPerformed(evt);
}
});

BAns2.setText(resourceMap.getString("BAns2.text")); // NOI18N
BAns2.setName("BAns2"); // NOI18N
BAns2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BAns2ActionPerformed(evt);
}
});

BAns3.setText(resourceMap.getString("BAns3.text")); // NOI18N
BAns3.setName("BAns3"); // NOI18N
BAns3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BAns3ActionPerformed(evt);
}
});

BAns4.setText(resourceMap.getString("BAns4.text")); // NOI18N
BAns4.setName("BAns4"); // NOI18N
BAns4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BAns4ActionPerformed(evt);
}
});

BQuit.setBackground(resourceMap.getColor("BQuit.background")); // NOI18N
BQuit.setFont(resourceMap.getFont("BQuit.font")); // NOI18N
BQuit.setText(resourceMap.getString("BQuit.text")); // NOI18N
BQuit.setName("BQuit"); // NOI18N
BQuit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BQuitActionPerformed(evt);
}
});

BNext.setBackground(resourceMap.getColor("BNext.background")); // NOI18N
BNext.setFont(resourceMap.getFont("BNext.font")); // NOI18N
BNext.setText(resourceMap.getString("BNext.text")); // NOI18N
BNext.setEnabled(false);
BNext.setName("BNext"); // NOI18N
BNext.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BNextActionPerformed(evt);
}
});

LRs10.setFont(resourceMap.getFont("LRs10.font")); // NOI18N
LRs10.setForeground(resourceMap.getColor("LRs10.foreground")); // NOI18N
LRs10.setText(resourceMap.getString("LRs10.text")); // NOI18N
LRs10.setName("LRs10"); // NOI18N

LRs9.setFont(resourceMap.getFont("LRs9.font")); // NOI18N
LRs9.setForeground(resourceMap.getColor("LRs9.foreground")); // NOI18N
LRs9.setText(resourceMap.getString("LRs9.text")); // NOI18N
LRs9.setName("LRs9"); // NOI18N

LRs8.setFont(resourceMap.getFont("LRs8.font")); // NOI18N
LRs8.setForeground(resourceMap.getColor("LRs9.foreground")); // NOI18N
LRs8.setText(resourceMap.getString("LRs8.text")); // NOI18N
LRs8.setName("LRs8"); // NOI18N

LRs7.setFont(resourceMap.getFont("LRs7.font")); // NOI18N
LRs7.setForeground(resourceMap.getColor("LRs7.foreground")); // NOI18N
LRs7.setText(resourceMap.getString("LRs7.text")); // NOI18N
LRs7.setName("LRs7"); // NOI18N

LRs6.setFont(resourceMap.getFont("LRs6.font")); // NOI18N
LRs6.setForeground(resourceMap.getColor("LRs6.foreground")); // NOI18N
LRs6.setText(resourceMap.getString("LRs6.text")); // NOI18N
LRs6.setName("LRs6"); // NOI18N

LRs5.setFont(resourceMap.getFont("LRs5.font")); // NOI18N
LRs5.setForeground(resourceMap.getColor("LRs5.foreground")); // NOI18N
LRs5.setText(resourceMap.getString("LRs5.text")); // NOI18N
LRs5.setName("LRs5"); // NOI18N

LRs4.setFont(resourceMap.getFont("LRs4.font")); // NOI18N
LRs4.setForeground(resourceMap.getColor("LRs2.foreground")); // NOI18N
LRs4.setText(resourceMap.getString("LRs4.text")); // NOI18N
LRs4.setName("LRs4"); // NOI18N

LRs3.setFont(resourceMap.getFont("LRs3.font")); // NOI18N
LRs3.setForeground(resourceMap.getColor("LRs2.foreground")); // NOI18N
LRs3.setText(resourceMap.getString("LRs3.text")); // NOI18N
LRs3.setName("LRs3"); // NOI18N

LRs2.setFont(resourceMap.getFont("LRs2.font")); // NOI18N
LRs2.setForeground(resourceMap.getColor("LRs2.foreground")); // NOI18N
LRs2.setText(resourceMap.getString("LRs2.text")); // NOI18N
LRs2.setName("LRs2"); // NOI18N

LRs1.setFont(resourceMap.getFont("LRs1.font")); // NOI18N
LRs1.setForeground(resourceMap.getColor("LRs1.foreground")); // NOI18N
LRs1.setText(resourceMap.getString("LRs1.text")); // NOI18N
LRs1.setName("LRs1"); // NOI18N

LEnd_help.setFont(resourceMap.getFont("LEnd_help.font")); // NOI18N
LEnd_help.setForeground(resourceMap.getColor("LEnd_help.foreground")); // NOI18N
LEnd_help.setText(resourceMap.getString("LEnd_help.text")); // NOI18N
LEnd_help.setVisible(false);
LEnd_help.setName("LEnd_help"); // NOI18N

javax.swing.GroupLayout mainPanelLayout = new javax.swing.GroupLayout(mainPanel);
mainPanel.setLayout(mainPanelLayout);
mainPanelLayout.setHorizontalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(LQuestion, javax.swing.GroupLayout.DEFAULT_SIZE, 654, Short.MAX_VALUE)
.addContainerGap())
.addGroup(mainPanelLayout.createSequentialGroup()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(10, 10, 10)
.addComponent(BFifty_fifty)
.addGap(18, 18, 18)
.addComponent(BBar_chart))
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(LEnd_help, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(43, 43, 43)
.addComponent(LHelp)))
.addGap(39, 39, 39)
.addComponent(LImg))
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(316, 316, 316)
.addComponent(LTimer)))
.addGap(110, 110, 110)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addComponent(LRs10)
.addGap(57, 57, 57))
.addGroup(mainPanelLayout.createSequentialGroup()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(LRs3)
.addComponent(LRs2)
.addComponent(LRs1, javax.swing.GroupLayout.PREFERRED_SIZE, 120, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(LRs4)
.addComponent(LRs6)
.addComponent(LRs5)
.addComponent(LRs9)
.addComponent(LRs8)
.addComponent(LRs7))
.addContainerGap())))
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(139, 139, 139)
.addComponent(LWelcome)
.addContainerGap(159, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(BAns3, javax.swing.GroupLayout.DEFAULT_SIZE, 260, Short.MAX_VALUE)
.addComponent(BAns1, javax.swing.GroupLayout.DEFAULT_SIZE, 260, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 107, Short.MAX_VALUE)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(BAns4, javax.swing.GroupLayout.DEFAULT_SIZE, 260, Short.MAX_VALUE)
.addComponent(BAns2, javax.swing.GroupLayout.DEFAULT_SIZE, 260, Short.MAX_VALUE))
.addGap(37, 37, 37))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mainPanelLayout.createSequentialGroup()
.addContainerGap(415, Short.MAX_VALUE)
.addComponent(BQuit, javax.swing.GroupLayout.PREFERRED_SIZE, 79, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(BNext, javax.swing.GroupLayout.PREFERRED_SIZE, 78, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(84, 84, 84))
);
mainPanelLayout.setVerticalGroup(
mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(LWelcome)
.addGap(11, 11, 11)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(mainPanelLayout.createSequentialGroup()
.addGap(12, 12, 12)
.addComponent(LHelp)
.addGap(18, 18, 18)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(BFifty_fifty, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(BBar_chart, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LEnd_help))
.addComponent(LImg))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LTimer))
.addGroup(mainPanelLayout.createSequentialGroup()
.addComponent(LRs10)
.addGap(18, 18, 18)
.addComponent(LRs9)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LRs8)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LRs7)
.addGap(18, 18, 18)
.addComponent(LRs6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LRs5)
.addGap(26, 26, 26)
.addComponent(LRs4)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LRs3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LRs2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(LRs1)))
.addGap(6, 6, 6)
.addComponent(LQuestion)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 30, Short.MAX_VALUE)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BAns1)
.addComponent(BAns2))
.addGap(18, 18, 18)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BAns3)
.addComponent(BAns4))
.addGap(27, 27, 27)
.addGroup(mainPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BQuit)
.addComponent(BNext))
.addGap(58, 58, 58))
);

menuBar.setName("menuBar"); // NOI18N

fileMenu.setText(resourceMap.getString("fileMenu.text")); // NOI18N
fileMenu.setName("fileMenu"); // NOI18N

javax.swing.ActionMap actionMap = org.jdesktop.application.Application.getInstance(crorepati.CrorepatiApp.class).getContext().getActionMap(CrorepatiView.class, this);
exitMenuItem.setAction(actionMap.get("quit")); // NOI18N
exitMenuItem.setName("exitMenuItem"); // NOI18N
fileMenu.add(exitMenuItem);

menuBar.add(fileMenu);

helpMenu.setText(resourceMap.getString("helpMenu.text")); // NOI18N
helpMenu.setName("helpMenu"); // NOI18N

aboutMenuItem.setAction(actionMap.get("showAboutBox")); // NOI18N
aboutMenuItem.setName("aboutMenuItem"); // NOI18N
helpMenu.add(aboutMenuItem);

menuBar.add(helpMenu);

statusPanel.setName("statusPanel"); // NOI18N

statusPanelSeparator.setName("statusPanelSeparator"); // NOI18N

statusMessageLabel.setName("statusMessageLabel"); // NOI18N

statusAnimationLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
statusAnimationLabel.setName("statusAnimationLabel"); // NOI18N

progressBar.setName("progressBar"); // NOI18N

javax.swing.GroupLayout statusPanelLayout = new javax.swing.GroupLayout(statusPanel);
statusPanel.setLayout(statusPanelLayout);
statusPanelLayout.setHorizontalGroup(
statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(statusPanelSeparator, javax.swing.GroupLayout.DEFAULT_SIZE, 680, Short.MAX_VALUE)
.addGroup(statusPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(statusMessageLabel)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 510, Short.MAX_VALUE)
.addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(statusAnimationLabel)
.addContainerGap())
);
statusPanelLayout.setVerticalGroup(
statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(statusPanelLayout.createSequentialGroup()
.addComponent(statusPanelSeparator, javax.swing.GroupLayout.PREFERRED_SIZE, 2, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(statusMessageLabel)
.addComponent(statusAnimationLabel)
.addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(3, 3, 3))
);

setComponent(mainPanel);
setMenuBar(menuBar);
setStatusBar(statusPanel);
}// </editor-fold>

private void BAns1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBAns1_actionPerformed(ActionEvent e) called.");
getAnswer(1);
}

private void BAns2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBAns2_actionPerformed(ActionEvent e) called.");
getAnswer(2);
}

private void BAns3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBAns3_actionPerformed(ActionEvent e) called.");
getAnswer(3);
}

private void BAns4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBAns4_actionPerformed(ActionEvent e) called.");
getAnswer(4);
}

private void BQuitActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBQuit_actionPerformed(ActionEvent e) called.");
this.getFrame().setVisible(false);
System.out.println("2222222222222");
new QuitGame();
System.out.println("3333333333333");
}

private void BNextActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBNext_actionPerformed(ActionEvent e) called.");
BAns1.setEnabled(true);
BAns2.setEnabled(true);
BAns3.setEnabled(true);
BAns4.setEnabled(true);
BAns1.setVisible(true);
BAns2.setVisible(true);
BAns3.setVisible(true);
BAns4.setVisible(true);
setHelpDisable();
BAns1.setBackground(new Color(240,240,240));
BAns1.setForeground(new Color(0,0,0));
BAns2.setBackground(new Color(240,240,240));
BAns2.setForeground(new Color(0,0,0));
BAns3.setBackground(new Color(240,240,240));
BAns3.setForeground(new Color(0,0,0));
BAns4.setBackground(new Color(240,240,240));
BAns4.setForeground(new Color(0,0,0));
BNext.setEnabled(true);
setQuestion();
}

private void BFifty_fiftyActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
BFifty_fifty.setVisible(false);
System.out.println("\nBFifty_fifty_actionPerformed(ActionEvent e) called.");
if(correct_ans==1){
BAns2.setVisible(false);
BAns3.setVisible(false);

}
else if(correct_ans==2){
BAns1.setVisible(false);
BAns3.setVisible(false);

}
else if(correct_ans==3){
BAns2.setVisible(false);
BAns4.setVisible(false);

}
else if(correct_ans==4){
BAns2.setVisible(false);
BAns3.setVisible(false);
}
}

private void BBar_chartActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
System.out.println("\nBBar_chart_actionPerformed(ActionEvent e) called.");
BBar_chart.setVisible(false);
if(correct_ans==1){
BAns2.setVisible(false);
BAns3.setVisible(false);
BAns4.setVisible(false);
}
else if(correct_ans==2){
BAns1.setVisible(false);
BAns3.setVisible(false);
BAns4.setVisible(false);
}
else if(correct_ans==3){
BAns1.setVisible(false);
BAns2.setVisible(false);
BAns4.setVisible(false);
}
else if(correct_ans==4){
BAns1.setVisible(false);
BAns2.setVisible(false);
BAns3.setVisible(false);
}
}

// Variables declaration - do not modify
private javax.swing.JButton BAns1;
private javax.swing.JButton BAns2;
private javax.swing.JButton BAns3;
private javax.swing.JButton BAns4;
javax.swing.JButton BBar_chart;
javax.swing.JButton BFifty_fifty;
javax.swing.JButton BNext;
private javax.swing.JButton BQuit;
javax.swing.JLabel LEnd_help;
private javax.swing.JLabel LHelp;
private javax.swing.JLabel LImg;
private javax.swing.JLabel LQuestion;
private javax.swing.JLabel LRs1;
private javax.swing.JLabel LRs10;
private javax.swing.JLabel LRs2;
private javax.swing.JLabel LRs3;
private javax.swing.JLabel LRs4;
private javax.swing.JLabel LRs5;
private javax.swing.JLabel LRs6;
private javax.swing.JLabel LRs7;
private javax.swing.JLabel LRs8;
private javax.swing.JLabel LRs9;
javax.swing.JLabel LTimer;
private javax.swing.JLabel LWelcome;
private javax.swing.JPanel mainPanel;
private javax.swing.JMenuBar menuBar;
private javax.swing.JProgressBar progressBar;
private javax.swing.JLabel statusAnimationLabel;
private javax.swing.JLabel statusMessageLabel;
private javax.swing.JPanel statusPanel;
// End of variables declaration
Connection conn = null;
PreparedStatement ps;
ResultSet rs;
int q_id=0;
int correct_ans=0;
int time_count=30;
boolean ans_clicked=true;
StopClock sc;
Random randomGenerator = new Random();
private final Timer messageTimer;
private final Timer busyIconTimer;
private final Icon idleIcon;
private final Icon[] busyIcons = new Icon[15];
private int busyIconIndex = 0;

private JDialog aboutBox;
}
class StopClock extends Thread{
CrorepatiView c;
StopClock(CrorepatiView c){
this.c=c;
}
public void run(){
while(c.time_count>0 && c.ans_clicked){
//System.out.println("************ans_clicked:"+c.ans_clicked);
try{
this.sleep(1000);
}
catch(Exception e){
e.printStackTrace();
}
c.time_count--;
c.LTimer.setText(c.time_count+"");
}
c.setButtonDisable();
if(c.time_count==0){
c.setOtherDisable();
c.BNext.setEnabled(false);
}
}
}

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Coding part of Quiz Game

CrorepatiView.java.