JOptionPane Message Dialog Constants
The constants that represent the message dialog types are shown in Fig. 12.3. All message dialog types except PLAIN_MESSAGE display an icon to the left of the message. These icons provide a visual indication of the message’s importance to the user. A QUESTION_MESSAGE icon is the default icon for an input dialog box (see Fig. 12.2).
Fig. 12.3 | JOptionPane static constants for message dialogs.
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