JFrame is a normal window with its normal buttons (optionally) and decorations. JDialog on the other side does not have a maximize and minimize buttons and usually are created with JOptionPane static methods, and are better fit to make them modal (they block other components until they are closed). But both inherit from Window, so … Read more
import java.awt.event.*; import javax.swing.*; public class YourDialog extends JDialog implements ActionListener { JButton button; public YourDialog() { button = new JButton(“Close”); button.addActionListener(this); add(button); pack(); setVisible(true); } public void actionPerformed(ActionEvent e) { dispose(); } } close only dialolg using dispose() method parent frame not closed. reason that JVM not terminated.
I found the answer to your question because I had the opposite problem. I had a JDialog that was showing in the taskbar and it took me forever to figure out how to prevent it from showing. Turns out if you pass a null parent to the JDialog constructor, your dialog will show in the … Read more
Closing a window (with dispose()) and hiding it (with setVisible(false)) are different operations, and produce different events — and closing it from the operating system is yet another different operation that produces yet a different event. All three will produce windowDeactivated to tell you the window’s lost focus, but dispose() will then produce windowClosed, while … Read more
If you don’t need much in the way of custom behavior, JOptionPane is a good time saver. It takes care of the placement and localization of OK / Cancel options, and is a quick-and-dirty way to show a custom dialog without needing to define your own classes. Most of the time the “message” parameter in … Read more
I generally do it like this: Dialog dlg = new Dialog(this, …); Value result = dlg.showDialog(); The Dialog.showDialog() function looks like this: ReturnValue showDialog() { setVisible(true); return result; } Since setting visibility to true on a JDialog is a modal operation, the OK button can set an instance variable (result) to the chosen result of … Read more