import java.awt.Component; import javax.swing.JOptionPane; public class Main { public static void main(String[] argv) throws Exception { int i = ok("Done."); System.out.println("ret : " + i); } public static int ok(String theMessage) { int result = JOptionPane.showConfirmDialog((Component) null, theMessage, "alert", JOptionPane.DEFAULT_OPTION); return result; } }