JENDELA INFORMATIKA ID

A.INPUT import java.awt.event.*; import javax.swing.*; import java.awt.*; class CobaMenu extends JFrame {                 JMenuBar menuBar;                 JMenu file, doc, edit, help;                 JMenuItem  open, save, exit, delete, copy, paste, about;                 public CobaMenu() {                 setTitle("Menu");                 setSize(200,200);                 file = new JMenu("F...