private void formWindowClosing(java.awt.event.WindowEvent evt) { // TODO add your handling code here { display_mengajar_dosen a = new display_mengajar_dosen(); a.setVisible(true); a.tampil(); setVisible(false); } } public static void main(String[] args) { // TODO code application logic here display_mengajar_dosen a = new display_mengajar_dosen(); a.tampil(); } }