I have this error
--------------------Configuration: <Default>--------------------
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at java.awt.Container.addImpl(Container.java:1041)
at java.awt.Container.add(Container.java:959)
at javax.swing.JFrame.addImpl(JFrame.java:540)
at java.awt.Container.add(Container.java:365)
at ticketReservation.<init>(ticketReservation.java:114)
at bookAngels.actionPerformed(bookAngels.java:163)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6267)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6032)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
...and i dont know what the problem is. Can u help me find it..
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class bookBatman extends JFrame implements ActionListener {
private JLabel jlbName, jlbTime, jlbPic, jlbDate, jlbDescription, jlbAuthor, jlbDateProduce, jlbDirector, jlbActor, jlbRate, jlbNoOfTicket, jlbPrice;
private JTextField jtfNoOfTicket;
private JRadioButton jr1, jr2, jr3, jr4, jr5, jr6, jr7, jr8, jr9, jr10;
private JButton jBook, jCancel;
Font f = new Font("Times",Font.BOLD,30);
public bookBatman () {
setLayout(null); //set LayoutManager
// initialized the label
jlbName = new JLabel ("Batman : The Dark Knight");
jlbTime = new JLabel ("Time :");
jlbPrice = new JLabel ("RM 12.00");
jlbPic = new JLabel ();
jlbPic.setIcon(new ImageIcon("C:\\Users\\User\\Desktop\\OOP project\\img\\icon\\Batman.jpg"));
// add all the label on the frame
add(jlbName);
add(jlbPic);
add(jlbTime);
add(jlbPrice);
// set all the label positions
jlbName.setBounds(85, 78, 149, 18); //(int x, int y, int width, int height)
jlbPic.setBounds(74, 101, 180, 288);
jlbTime.setBounds(74, 400, 60, 18);
jlbPrice.setBounds (270, 477, 60, 18);
// initialized the textfield
jlbAuthor = new JLabel ("Author : Michael Bay");
jlbDateProduce = new JLabel ("Date : 12nd January 2011");
jlbDirector = new JLabel ("Director : Michael Bay, Michael Bay");
jlbActor = new JLabel ("Actor : Michael Bay, Michael Bay, Michael Bay, Michael Bay, Michael Bay and etc..");
jlbRate = new JLabel ("Movie Rate : 18 PG (Parental Guidance)");
jlbNoOfTicket = new JLabel ("Number of Ticket :");
jlbPrice = new JLabel ("RM 12.00");
// add all the textfield on the frame
add(jlbAuthor);
add(jlbDateProduce);
add(jlbDirector);
add(jlbActor);
add(jlbRate);
add(jlbNoOfTicket);
// set the textfield position
jlbAuthor.setBounds (273, 102, 111, 18);
jlbDateProduce.setBounds (273, 132, 114, 18);
jlbDirector.setBounds (273, 162, 110, 18);
jlbActor.setBounds (273, 192, 297, 18);
jlbRate.setBounds (273, 222, 96, 18);
jlbNoOfTicket.setBounds (77, 478, 150, 18);
// initialize the Radio Button
jr1 = new JRadioButton ("11.40 AM");
jr2 = new JRadioButton ("12.00 PM");
jr3 = new JRadioButton ("1.40 PM");
jr4 = new JRadioButton ("3.40 PM");
jr5 = new JRadioButton ("5.40 PM");
jr6 = new JRadioButton ("7.00 PM");
jr7 = new JRadioButton ("9.00 PM");
jr8 = new JRadioButton ("10.40 PM");
jr9 = new JRadioButton ("11.40 PM");
jr10 = new JRadioButton ("12.40 AM");
// add all the radion button
add(jr1);
add(jr2);
add(jr3);
add(jr4);
add(jr5);
add(jr6);
add(jr7);
add(jr8);
add(jr9);
add(jr10);
// set the radion button positions
jr1.setBounds (75, 423, 100, 24);
jr2.setBounds (172, 423, 100, 24);
jr3.setBounds (269, 423, 100, 24);
jr4.setBounds (366, 423, 100, 24);
jr5.setBounds (463, 423, 100, 24);
jr6.setBounds (75, 447, 100, 24);
jr7.setBounds (172, 447, 100, 24);
jr8.setBounds (269, 447, 100, 24);
jr9.setBounds (366, 447, 100, 24);
jr10.setBounds (463, 447, 100, 24);
// group the button
ButtonGroup group = new ButtonGroup ();
group.add(jr1);
group.add(jr2);
group.add(jr3);
group.add(jr4);
group.add(jr5);
group.add(jr6);
group.add(jr7);
group.add(jr8);
group.add(jr9);
group.add(jr10);
// initialize all the button
jBook = new JButton ("Book Now");
jCancel = new JButton ("Cancel");
// add all the button
add (jBook);
add (jCancel);
// set the button positions
jBook.setBounds (285, 519, 93, 28);
jCancel.setBounds (389, 519, 83, 28);
// add actionlistener
jBook.addActionListener (this);
jCancel.addActionListener (this);
// initialize all text field
jtfNoOfTicket = new JTextField (15);
// add all the text field
add (jtfNoOfTicket);
// set the text field positions
jtfNoOfTicket.setBounds (200, 477, 56, 22);
}
public static void main (String [] args) {
bookBatman frame = new bookBatman ();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Book Batman : The Dark Knight"); //set title of thewindow
frame.setSize(800,600); //size of the window
frame.setVisible(true); //visible the window
frame.setLocationRelativeTo (null); //center the window
}
public void actionPerformed(ActionEvent e){
if((e.getSource() == jBook)) {
String Name = jtfName.getText();
String Date = jlbDateProduce.getText();
int Number = (Integer.parseInt(jtfNoOfTicket.getText().trim()));
//Passing
ticketReservation frame = new ticketReservation(Name, Date, String.valueOf (Number));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Ticket Reservation"); //set title of thewindow
frame.setSize(800,600); //size of the window
frame.setVisible(true); //visible the window
frame.setLocationRelativeTo (null); //center the window
}
if((e.getSource() == jCancel)) {
listOfMovies frame = new listOfMovies ();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("List of Movies"); //set title of thewindow
frame.setSize(800,600); //size of the window
frame.setVisible(true); //visible the window
frame.setLocationRelativeTo (null); //center the window
}
}
}import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ticketReservation extends JFrame implements ActionListener {
private JLabel jlbWelcome, jlbReserved, jlbMovie, jlbDateProduce, jlbShowtime, jlbNoOfSeats, jlbPrice, jlbNoOfTicket;
private JTextField jtfMovie, jtfDate, jtfShowtime, jtfNoOfSeats, jtfPrice, jtfNoOfTicket;
private JButton jConfirm, jCancel;
// private JRadioButton ButtonGroup;
Font f=new Font("Times",Font.BOLD,30);
//Font f1=new Font("Times",Font.BOLD,16);
//Font f2=new Font("Times",Font.BOLD,12);
public ticketReservation () {
}
public ticketReservation (String Name,String Date, String Number) {
setLayout(null); //set LayoutManager
jlbWelcome = new JLabel ("Ticket Reservation");
add(jlbWelcome);
jlbWelcome.setBounds(170,50,500,100);
jlbWelcome.setHorizontalAlignment(jlbWelcome.CENTER );
jlbWelcome.setFont(f);
// initialized the label
jlbMovie = new JLabel("Movie :");
// jlbDate = new JLabel("Date :");
jlbShowtime = new JLabel("Showtime :");
jlbNoOfSeats = new JLabel("No of Seats :");
jlbPrice = new JLabel("Price :");
jlbNoOfTicket = new JLabel("No Of Tickets :");
// add all the label on the frame
add(jlbMovie);
// add(jlbDate);
add(jlbShowtime);
add(jlbNoOfSeats);
add(jlbPrice);
add(jlbNoOfTicket);
// set Positions
jlbMovie.setBounds(300,140,100,20); //(int x, int y, int width, int height)
// jlbDate.setBounds(300,180,100,20);
jlbShowtime.setBounds(300,220,100,20);
jlbNoOfSeats.setBounds(300,250,100,20);
jlbPrice.setBounds(300,280,100,20);
jlbNoOfTicket.setBounds(300,310,100,20);
// initialize the textfield with size
// jtfMovie = new JTextField(15);
// jtfDate = new JTextField(15);
jtfShowtime = new JTextField(15);
jtfNoOfSeats = new JTextField(15);
jtfPrice = new JTextField(15);
// jtfNoOfTicket = new JTextField(15);
// add all the label on the frame
// add(jtfMovie);
// add(jtfDate);
add(jtfShowtime);
add(jtfNoOfSeats);
add(jtfPrice);
// add(jtfNoOfTicket);
// set a particlar position on a frame
// jtfMovie.setBounds(400,140,100,20); //.setBounds (int x, int y, int width, int height)
// jtfDate.setBounds(400,180,100,20);
jtfShowtime.setBounds(400,220,100,20);
jtfNoOfSeats.setBounds(400,250,100,20);
jtfPrice.setBounds(400,280,100,20);
// jtfNoOfTicket.setBounds(400,320,100,20);
// add button
jConfirm = new JButton("Confirm");
jCancel = new JButton("Cancel");
// add tooltip in the buttons
jConfirm.setToolTipText("Click this button to Add record in the Database.");
jCancel.setToolTipText("Click this button to Save record in the Database.");
// add all the button on a frame
add(jConfirm);
add(jCancel);
// set a particular position on a Frame
jConfirm.setBounds(290,370,100,30);
jCancel.setBounds(400,370,100,30);
// register all the button
jConfirm.addActionListener(this);
jCancel.addActionListener(this);
jlbMovie= new JLabel (Name);
jtfNoOfTicket = new JTextField (Number);
jlbDateProduce = new JLabel (Date);
// ButtonGroup = new JRadioButton (group);
add (jtfMovie);
add (jtfNoOfTicket);
add (jlbDateProduce);
// add (ButtonGroup);
jtfMovie.setBounds(400,140,100,20);
jtfNoOfTicket.setBounds(400,320,100,20);
jlbDateProduce.setBounds (300,180,300,20);
// ButtonGroup.setBounds (300,180,300,20);
jtfMovie.setEditable(false); //not editable
jtfNoOfTicket.setEditable(false); //not editable
}
public void actionPerformed(ActionEvent e) {
if((e.getSource() == jCancel)) {
listOfMovies frame = new listOfMovies ();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("List of Movies"); //set title of thewindow
frame.setSize(800,600); //size of the window
frame.setVisible(true); //visible the window
frame.setLocationRelativeTo (null); //center the window
}
}
public static void main (String [] args) {
ticketReservation frame=new ticketReservation();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Ticket Reservation"); //set title of thewindow
frame.setSize(800,600); //size of the window
frame.setVisible(true); //visible the window
frame.setLocationRelativeTo (null); //center the window
}
}
