Which method of the JOptionPane can ask for a confirmation of Yes No?
JOptionPane. showConfirmDialog() − To show the confirm message box.
Why do we use null in JOptionPane?
Passing null to it just indicates that there’s not an associated “parent” dialog – ie, the dialog being displayed does not belong to another dialog.
What is input dialog in Java?
A dialog box is a small graphical window that displays a message to the user or requests input. Two of the dialog boxes are: – Message Dialog – a dialog box that displays a message. Input Dialog – a dialog box that prompts the user for input. The ‘javax.swing.JOptionPane’ class offers dialog box methods.
Which method display the front dialogue box?
The ShowDialog () method is used to run a common dialog box with the default setting.
What is parent component in JOptionPane?
JOptionPane. showMessageDialog(f, “You have mail.”); The first parameter to showMessageDialog( ) is the parent component (in this case f , an existing JFrame ). The dialog will be centered on the parent component. If you pass null for the parent component, the dialog is centered in your screen.
What is the use of joptionpane showoptiondialog?
The showOptionDialog method of JOptionPane is the Grand Unification of showConfirmDialog, showInputDialog and showMessageDialog. The showOptionDialog returns an integer which represents the position of the user’s choice in the Object []. The options array can be set to any type you choose.
How can I display joptionpane dialog without JFrame or JWindow?
If for some reason you don’t have a reference to JFrame or JWindow instance, you can make that field null, and still display the identical JOptionPane dialog, as shown in this example: Note that when you supply a null argument like that, the JOptionPane dialog will be centered on the user’s screen.
What is joptionpane in Java Swing?
I n this tutorial, we are going to see an example of JOptionPane in Java Swing. JOptionPane class is used to provide standard dialog boxes such as the message box, confirmation box, and input box. These dialog boxes are used to display information or get information from the user.
How do I show a joptionpane dialog with a text message?
A simple JOptionPane example. Starting with a simple example, if you just want to show a JOptionPane dialog with a simple text message, all you need is one line of Java source code, like this: JOptionPane.showMessageDialog (frame, “A basic JOptionPane message dialog”); When this line of code is executed it will display the following message dialog: