Perform -> key press Event on GUI programmatically

[Sachin k Rajput]

How can I perform arrow key event for a GUI in my Java Program? Thanks!

[Lost User]

Use a KeyListener[^].

Use the best guess

[TorstenH]

+5 - This is how to get this done[^]

regards Torsten When I'm not working

[Lost User]

Thanks, all I did was go to the 'K' section in the documentation index. :-\

Use the best guess

[Sachin k Rajput]

Thanks for your suggestions.. My problem is I want to change the item in a Jlist Programmatically. That's why I wanted to use this but Robot(AWT key Press Event)not working. My code is:

listener = new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent e) {
Object o = imageList.getSelectedValue();
if (o instanceof BufferedImage) {
imageView.setIcon(new ImageIcon((BufferedImage)o));

            }

}
}
imageList.addListSelectionListener(listener);

Well the code is working fine but I want to change the next image using a button or something else How can I do this? Please help me in this?

[Lost User]

Sorry, I don't understand the problem. Maybe you need to look at some of the GUI tutorials[^].

Use the best guess

[Shubhashish_Mandal]

As "Rechard" suggest, add KeyListener to your imageList and put your logic on KeyPress event to move the next item on the list on up/down arrow key.

Regards Shubhashish

[TorstenH]

Read the tutorial. and maybe make a little "Area51"-project where you try and test things aside from normal coding.

regards Torsten When I'm not working

[Sachin k Rajput]

Thanks for your suggestions!!! If I'm not concerning in my project then the main task of mine is to change the item in a list on an event(Button or String Pass). ...I can do it on press of right key so I thought to read the right key programmatically. I think you can understand what I want to say.. Thanks!

[Lost User]

Indian Coder1989 wrote:

I thought to read the right key programmatically.

Yes, and you do this with a KeyListener, as we have said.

Use the best guess

[MarlBermudoNights]

KeyListener + passing the focus properly:

@Override
public void keyTyped(KeyEvent ke) {
if(ke.getKeyChar() == KeyEvent.VK_LEFT){
//do something
}else if(ke.getKeyChar() == KeyEvent.VK_RIGHT){
//do something else
}
}

@Override
public void keyPressed(KeyEvent e) {
keyTyped(e);
}

also by input mapping:

private void inputMap(){

    this.getInputMap().put(KeyStroke.getKeyStroke(
        KeyEvent.VK\_LEFT, 0), "left");
    this.getActionMap().put("left", new AbstractAction() {
        @Override
        public void actionPerformed(ActionEvent ae) {
            //do something
        }
    });
}