How do you use message dialog on JOptionPane?
How do you use message dialog on JOptionPane?
Show a dialog asking the user to type in a String: String inputValue = JOptionPane. showInputDialog(“Please input a value”);…Class JOptionPane.
| Method Name | Description |
|---|---|
| showMessageDialog | Tell the user about something that has happened. |
| showOptionDialog | The Grand Unification of the above three. |
What is JOptionPane input dialog?
The JOptionPane class is used to provide standard dialog boxes such as message dialog box, confirm dialog box and input dialog box. These dialog boxes are used to display information or get input from the user. The JOptionPane class inherits JComponent class.
How many types of message dialog boxes are defined in the JOptionPane class?
The JOptionPane displays the dialog boxes with one of the four standard icons (question, information, warning, and error) or the custom icons specified by the user.
Why do we need to use JOptionPane into our program?
JOptionPane is a component from Java Swing and it deals with dialog boxes especially. The dialog boxes can be of any type such as confirm dialog box, message dialog box or input dialog box. These dialog boxes can be used to display information to the user or to get input from the user.
What is JOptionPane?
JOptionPane is a class library that makes it easy to pop up a simple dialog box that either provides an information message or asks for a simple input from the user. While the class has a lot of methods, most uses of this class are through a few static methods.
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 the 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.
What is import javax swing?
Import : it means you want to use or import the packages which has inbuild classes so that you can build you GUI project Javax: javax is a basic package which has number of classes to make your GUI better Swing : swing is also one of the package which is stored in javax which has number of classes like jlabel.
