joptionpanedemo.java

精通Java核心技术源代码

	// import class JOptionPane
	import javax.swing.JOptionPane;
	
	public class JOptionPaneDemo {
	   // main method begins execution of Java application
	   public static void main( String args[] )
	   {
	      JOptionPane.showMessageDialog( null,"Error occured at line 24!","Show Error Message",3  );
	      System.exit( 0 );
	   }
	}