Question

I create a jPanel and I open a new jDialog when I click on button (dlgSegments is a JDialog that opened):

JButton btnAddSegment = new JButton("Add GeoSegment");
btnAddSegment.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        dlgSegments.setVisible(true);
    }
});

Then in the opened jDialog I want to return the “selected” back to the jPanel which called this jDialog.

How can I implement it?

This is the button listener in the opened jDialog and seleced is the variable that I want to pass to the jPanel:

addButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        GeoSegment selected = lstSegments.getSelectedValue();
        // i want to send back the selected value
    }
});

Answer 1

One possible solution: If you create your Dialog send an DataObject to the Dialog via his constructor. The DataObject conatins the value you are interested in.

MyDataObject dataObject = new MyDataObject();
MyDialog dialog = new MyDialog(dataObject);

fill the DataObject with the selected value in the dialog.