JOptionPane. Import javax.swing.JOptionPane Use showInputDialog() for input. Only string values can be input. To convert an input value from a string. - ppt download
JOptionPane help needed - Java - Codecademy Forums
JOptionPane: showMessageDialog and showInputDialog
JOptionPane showMessageDialog (PLAIN_MESSAGE)
Using JOptionPane to prompt user confirmation: a demo : JOptionPane Dialog « Swing « Java Tutorial