Thread: how can i make a jbutton to close a jframe??

y0 guys i have been working on a jframe with background and jbuttons and i fixed everything of it
but the thing that i want to make the exit button i made to close the jframe when i click on it??
any way how to add that ??
hope somone can help me out!
im a new beginner so.

JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

no its not that i want o make an JButton to close the jframe

Add action listener to the JButton where to close the JFrame its frame.dispose(); WARNIGN THE GUI GETS DESTROYED ONLY PROGRAM DOESNT CLOSE

can you guys type how?? like type the things that i can add??

copeg give you a perfect set of steps to follow in post #4.
Post any questions you have about which step you are stuck on.
Include the full text of any error messages with your code so we can see what is going on

im stuck with that i can make the jbutton i made to close the jframe when i click at it
i typed this
JButton button3 = new JButton ("Exit");
button.addActionListener(this);
super.dispose();
i added super since i made a screen with super not frame jframe

Originally Posted by FastFuture

im stuck with that i can make the jbutton i made to close the jframe when i click at it
i typed this
JButton button3 = new JButton ("Exit");
button.addActionListener(this);

Step 1 complete. Step 2 has been started but not finished. You have added "this" as an action listener to the button correctly, but I do not see the code that closes the JFrame you wish to close.

Originally Posted by FastFuture

super.dispose();

Are you attempting to destroy the jframe and close the program, just destroy the jframe, or just temporarily hide the jframe?

Originally Posted by FastFuture

i added super since i made a screen with super not frame jframe

I do not understand exactly what this means, perhaps you can post more of the code, or all of it if it is fairly short?
The action listener is only a few lines of code, then on to step 3. (I think you have already done this step, so you are that much closer to finishing)

i want to make the JButton button3 = new JButton("Exit) i want to make that close the JFrame when i click at but heres all of my code

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;


import javax.imageio.ImageIO;
import javax.swing.*;

//MAIN
public class Main extends JFrame implements ActionListener {


// Fixed
// Fixed but it makes a new JFrame
//background with an new JFrame
JFrame f = new JFrame();


private static final long serialVersionUID = 1L;
// FIIXED
public static void main(String[] args) throws IOException {
new Main().setVisible(true);

}
// yellow thing
@SuppressWarnings("unused")
private JFrame JFrame() {
// TODO Auto-generated method stub
return null;
}

public void BackGroundImageJFrame() {

class ImagePanel extends JComponent {
private static final long serialVersionUID = 1L;
private Image image;
public ImagePanel(Image image) {
this.image = image;
}
@Override
protected void paintComponent(Graphics g) {
g.drawImage(image, 0, 0, null);

}
}
//JFrame Boarder
// elsewhere
BufferedImage myImage = ImageIO();
JFrame myJFrame = new JFrame("Image pane");
myJFrame.setContentPane(new ImagePanel(myImage));
setLayout( new BorderLayout());

}




private BufferedImage ImageIO() {
// TODO Auto-generated method stub
return null;
}
//Main Start at the JFrame
@SuppressWarnings("static-access")
private Main() throws IOException {
super("SpaceBall");
setContentPane(new JLabel(new ImageIcon(ImageIO.read(new File("C:/Users/AndreasM2/Desktop/java 2d2.png")))));
super.setDefaultCloseOperation(super.EXIT_ON_CLOSE );
f.pack();
setTitle("Spaceball");
setSize(450, 450); //1024x768, 800x600
setResizable(false);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);

@SuppressWarnings("unused")
class ImagePanel extends JComponent {
/**
*
*/
private static final long serialVersionUID = 1L;
private Image image;
public ImagePanel (Image image) {
this.image = image;

}
@Override
protected void paintComponent(Graphics g) {
g.drawImage(image, 0, 0, null);
}

}

//buttons
//make a Smooth FlowLayout
setLayout(new FlowLayout());
setLayout(new FlowLayout());
Button sceneButton = new Button();
sceneButton.setBackground(Color.RED);
setTitle("Spaceball");
JButton button = new JButton("Start Spaceball");
//important buttons for game
button.addActionListener(this);


add(button);


JButton button2 = new JButton("How to Play");
button.addActionListener(this);

add (button2);


JButton button3 = new JButton ("Exit");
button.addActionListener(this);
super.dispose();

add(button3);


button.setBackground(Color.CYAN); {
button2.setBackground(Color.CYAN);
button3.setBackground(Color.CYAN);


}
}




@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub


}

}

Use code tags when posting code. Instructions can be found on the announcements page. For future readers please edit your post and wrap the code in tags.

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
 
 
}

Well this is looking good so far. actionPerformed will be called when the button is clicked because "this" now correctly implements ActionListener. Inside the body of this method is where you place the code to close the jframe.
You never did specify what you want to do when the button is clicked. Close the window and exit the program. Close the window and leave the program going. Hide the window and show it again later and leave the program going... What exactly do you want to happen when the button is clicked?

i want to make the frame to close when i click at the jbutton of exit i made

....and leave the program running?
....and close the program?
....reopen the jframe later or not?

What have you tried since post #11?

OMG i want to make the exit button to close the jframe when i click start it opens a jframe and i have an exit button i want to make that button close the jframe when you click on it

i know but when i start the code it pops up a jframe with buttons i have added i want to make one of the jbuttons to close the jframe i made when its running that i dont have to click exit at the top to close it

i also want to make an jbutton to open a new jframe and how do i do that what do i need to type in ?? in my code

Originally Posted by FastFuture

i also want to make an jbutton to open a new jframe and how do i do that what do i need to type in ?? in my code

Work on one problem at a time. Or did you finish working on closing the jframe how you wanted to?
...How did you open the first JFrame? ... Do it again.

Or there is the option to hide (rather than close) the first JFrame and show it again later.

see 4695e31ef25ae16b3c108f62b3fc67a7.png i want to make the exit button to close the jframe and i want the start spaceball to open a new jframe when i click it

Originally Posted by FastFuture

see 4695e31ef25ae16b3c108f62b3fc67a7.png

Please post the necessary files on the forum rather than through a link or attachment.

Originally Posted by FastFuture

i want to make the exit button to close the jframe

What have you tried since post #11. Up to that point you were doing a good job solving your problem. Post your actionPerformed method.

Originally Posted by FastFuture

and i want the start spaceball to open a new jframe when i click it

When you click "it".... it what? If you just closed your jframe, what are you clicking to start spaceball?

Try to give as many specifics as possible. No one is as familiar with your project as you, and what may be perfectly clear to you may be mud to others.

omg just add me at skype : DimplyAndreas
its more easier to explain it over skype

Originally Posted by FastFuture

im tired of replying since you don't understand it

The simple solution would be to provide a straight forward answer to a question when one is asked. For example:
You have been asked several times, when the button is clicked and the jframe is to close, do you want to stop the program or leave it running. You should type one of the following in reply.
I want to close the program.
I want to leave the program running.
I want to leave the program running and open the jframe again later.
I want to leave the program running and open a new jframe.

With a simple answer to the question you were asked, we can provide a simple answer to the question you are asking, "How do you close your jframe when the button is clicked".
Since you did not provide enough information with your question, you were asked a question instead of getting an answer. The answer you get varies depending on which reply you choose to give.
So you must choose first.

You also failed to reply to this question:
When you click "it".... it what? If you just closed your jframe, what are you clicking to start spaceball?

You could also try to explain what you are trying to accomplish by closing and opening jframes. This is not an operation intended to be done frequently and on the fly. It is more of a once up front activity, and reuse the frame throughout the lifecycle of the display. Even if you load a new application from the current application, you can just swap the content pane in and out at will or show and hide all or parts at will. With all of these options built in; what are you trying to accomplish, maybe there is a more suitable approach.

Originally Posted by FastFuture

omg just add me at skype : DimplyAndreas
its more easier to explain it over skype

It would be difficult to include a skype converstaion on this forum for future readers. Post all questions and comments related to this problem on the forum in this thread.