Open a frame via a Button?

Hey, i am creating a cinema booking system and i have a frame (seatFrame). using the code seatFrame.show() works fine but when i enclose it within a button, the frame does not open? any help appreciated as Im fairly new to this.
public void actionPerformed(ActionEvent click)
if (click.getSource()==bookSeat)
{seatFrame.show();
}

Does the class that contains the actionPerformed method implement the ActionListener interface? And if so, have you added the action listener to the bookSeat button? For example:
bookSeat.addActionListener(this);By the way, using the show method is not your problem. While that method is deprecated the implementation of the setVisible method simply calls the deprecated show method. Having said that, you should be using the setVisible method.

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// Programmer:     AISC AM Programming class
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i have a applet and when i click on a button it opens a frame. i have atried a couple of things but the frame does not open. Can anybody Please help
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class mainscreen1 extends Applet implements ItemListener, ActionListener
private Image layout1;
private int frame;
private int xpos,ypos,xdir,ydir;
public TextField tn, tt1, tt2, total;
public int value, ticketnum, sum;
public Label title, seat, need, payable;
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public void init()
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setSize (600, 460);
setLayout(null);
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     ypos = getSize().height/12;
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     Checkbox Balcony = new Checkbox("Balcony", false, radio);
     Balcony.setBounds(490,65,65,25);
     add(Balcony);
     Balcony.addItemListener(this);
     Checkbox Concessions = new Checkbox("Concessions", false, radio);
     Concessions.setBounds(490,90,94,25);
     add(Concessions);
     Concessions.addItemListener(this);
Button b1=new Button("Quote");
     b1.setBounds(20,395,80,30);
     add(b1);
     b1.addActionListener( this );
     Button b2=new Button("Confirm booking");
     b2.setBounds(110,395,100,30);
     add(b2);
     b2.addActionListener( this );
     tt1=new TextField(60);
     tt1.setBounds(300,250,270,30);
add(tt1);
     tt1.addActionListener(this);
     tt2=new TextField(60);
     tt2.setBounds(300,300,150,30);
     add(tt2);
     tt2.addActionListener(this);
     tn=new TextField(3);
     tn.setBounds(545,180,30,30);
     add(tn);
     tn.addActionListener(this);
     total=new TextField(5);
     total.setBounds(400,390,45,30);
     add(total);
     total.addActionListener(this);
public void itemStateChanged(ItemEvent e)
     String c1 = (String) e.getItem();
     if (c1 == "Stalls")
          value = 20;
     else if (c1 == "Balcony")
          value = 15;
     else
          value = 10;
     tt1.setText("You have chosen to sit in the " + c1 + " area");
     tt2.setText("Each seat will cost: �" + value);
     repaint();
public void actionPerformed ( ActionEvent e )
if( e.getActionCommand() == "Quote" )
     //String sum = (String) e.getItem();
//sum = value*ticketnum;
     //Ssumtotal
     //total.setText(sum);
else if( e.getActionCommand() == "Confirm booking")
d = new Mydialog1(new Frame());
          ticketnum = Integer.parseInt(tn.getText());
          repaint();
     public void paint(Graphics g)
          g.setColor(Color.black);
          g.drawString ("You have chosen:" + ticketnum +" seats", 300, 365);
          g.drawImage(layout1,xpos,ypos,null);
Above is the 1st screen and when i click
confirm booking it don't open the frame, which is below:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Mydialog1 extends Frame implements ActionListener
public Label title;
public Button b1, b2;
public void init()
     setBackground(Color.pink);
setSize (600, 460);
setLayout(null);
     setLocation(320,140);
     setVisible(true);
     Mydialog1(Frame f);
title=new Label("Almeida Theater booking system");
     title.setBounds(150,0,185,30);
     add(title);
     Button b1=new Button("Close");
     b1.setBounds(20,395,80,30);
     add(b1);
     b1.addActionListener( this );
     Button b2=new Button("Proced with booking");
     b2.setBounds(110,395,100,30);
     add(b2);
     b2.addActionListener( this );
public void actionPerformed( ActionEvent e )
if( e.getActionCommand() == "Close" )
this.dispose();
else if( e.getActionCommand() == "Proced with booking")
setBackground(Color.blue);
Can anyone help also can anyone explain how i do calcualtions on the mainscreen.calss. the bit that says Quote. it has // cos i canot get it to work
PLEASE PLEASE

no, you dont have to create a new class.
here is your own code. This time we pass the parameters to another method, and
not the constructor.
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class mainscreen1 extends Applet implements ItemListener, ActionListener
private Image layout1;
private int frame;
private int xpos,ypos,xdir,ydir;
public TextField tn, tt1, tt2, total;
public int value, ticketnum, sum;
public Label title, seat, need, payable;
public Button b1, b2;
Mydialog1 d;
String c1;                   // obs
public void init()
setBackground(Color.pink);
setSize (600, 460);
setLayout(null);
xpos = getSize().width/-1400;
ypos = getSize().height/12;
layout1 = getImage(getDocumentBase(),"layout1.gif");
title=new Label("Almeida Theater booking system");
title.setBounds(150,0,185,30);
add(title);
seat=new Label("Please choose a seating location:");
seat.setBounds(300,40,190,25);
add(seat);
payable=new Label("Total Payable:�");
payable.setBounds(300,390,100,30);
add(payable);
need=new Label("Please enter the number of seats needed:");
need.setBounds(300,180,245,30);
add(need);
CheckboxGroup radio = new CheckboxGroup();
Checkbox Stalls = new Checkbox("Stalls", true, radio);
Stalls.setBounds(490,40,60,25);
add(Stalls);
Stalls.addItemListener(this);
Checkbox Balcony = new Checkbox("Balcony", false, radio);
Balcony.setBounds(490,65,65,25);
add(Balcony);
Balcony.addItemListener(this);
Checkbox Concessions = new Checkbox("Concessions", false, radio);
Concessions.setBounds(490,90,94,25);
add(Concessions);
Concessions.addItemListener(this);
Button b1=new Button("Quote");
b1.setBounds(20,395,80,30);
add(b1);
b1.addActionListener( this );
Button b2=new Button("Confirm booking");
b2.setBounds(110,395,100,30);
add(b2);
b2.addActionListener( this );
tt1=new TextField(60);
tt1.setBounds(300,250,270,30);
add(tt1);
tt1.addActionListener(this);
tt2=new TextField(60);
tt2.setBounds(300,300,150,30);
add(tt2);
tt2.addActionListener(this);
tn=new TextField(3);
tn.setBounds(545,180,30,30);
add(tn);
tn.addActionListener(this);
total=new TextField(5);
total.setBounds(400,390,45,30);
add(total);
total.addActionListener(this);
public void itemStateChanged(ItemEvent e)
c1 = (String) e.getItem();
if (c1 == "Stalls")
value = 20;
else if (c1 == "Balcony")
value = 15;
else
value = 10;
tt1.setText("You have chosen to sit in the " + c1 + " area");
tt2.setText("Each seat will cost: �" + value);
repaint();
public void actionPerformed ( ActionEvent e )
if( e.getActionCommand() == "Quote" )
    //String sum = (String) e.getItem();
    //sum = value*ticketnum;
    //Ssumtotal
    //total.setText(sum);
else if( e.getActionCommand() == "Confirm booking")
    int nr_seats = Integer.parseInt(tn.getText());
    total.setText("" +nr_seats*value);
    d = new Mydialog1();
    d.set_text(c1, nr_seats); // pass the c1 and the nr_seats vriables to the
                              // set_text method in the Mydialog1 class.
ticketnum = Integer.parseInt(tn.getText());
repaint();
public void paint(Graphics g)
g.setColor(Color.black);
g.drawString ("You have chosen:" + ticketnum +" seats", 300, 365);
g.drawImage(layout1,xpos,ypos,null);
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Mydialog1 extends Frame implements ActionListener
public Label title;
public Button b1, b2;
TextField tf; ///***/
public Mydialog1()
    setBackground(Color.pink);
    setSize (600, 460);
    setLayout(null);
    setLocation(320,140);
    //Mydialog1(Frame f);
    title=new Label("Almeida Theater booking system");
    title.setBounds(150,0,185,30);
    add(title);
    Button b1=new Button("Close");
    b1.setBounds(20,395,80,30);
    add(b1);
    b1.addActionListener( this );
    Button b2=new Button("Proced with booking");
    b2.setBounds(110,395,100,30);
    add(b2);
    b2.addActionListener( this );
    tf = new TextField();                    //new
    tf.setBounds(230, 395, 100,30);   //new
    add(tf);                                       //new
    setVisible(true);
public void actionPerformed( ActionEvent e )
    if( e.getActionCommand() == "Close" )
      this.dispose();
    else if( e.getActionCommand() == "Proced with booking")
      setBackground(Color.blue);
   * Folowing method can take two parameters. One string and one int.
public void set_text ( String seat_type, int nr_seats )
    tf.setText (seat_type +". " +nr_seats);
}

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Message was edited by:
Marcel Salein
A colleague told me that this is with this workaround not possible.

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