The class JOptionPane (javax.swing) allows you to display a dialog
Using JOptionPane to prompt user confirmation: a demo : JOptionPane Dialog « Swing « Java Tutorial
how to Work with JDialog and JOptionPane on NetBeans IDE — Hive
How to Make Dialogs (The Java™ Tutorials > Creating a GUI With Swing > Using Swing Components)
警告ダイアログを表示する - JOptionPaneクラス - Swing
Graphical User Interfaces. Graphical input and output with JOptionPane. - ppt download
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Adding Components to the Button Area: Using JOptionPane with a JButton containing a text label and an icon : JOptionPane Dialog « Swing « Java Tutorial
JOptionPane with username and password input - Stack Overflow
JOptionPane of Swing
How to use joptionpane.showmessagedialog in jsp and more stock binary options trading
All java code sample: Arithmetic Operation using JOptionPane