Object Oriented Programming Through Java by Pearson

9.20 Graphics Using AWT Controls

21. b = new Button(“Click for Dialog Box”);

22. add(b);

23. d = new Dialog(this, “Dialog Box Demo” , false);

24. d.setSize(300, 300);

25. d.setLocation(400,100);

26. db = new Button(“Click to Close Dialog Box”);

27. d.add(db);

28. HandleEvent evt = new HandleEvent();

29. b.addActionListener(evt);

30. db.addActionListener(evt);

31. }

32. class HandleEvent implements ActionListener{

33. public void actionPerformed(ActionEvent e) {

34. Object obj = e.getSource();

35. if (obj == b)

36. d.setVisible(true);

37. else

38. if(obj == db)

39. d.setVisible(false);

40. }

41. }

42. }

9.3.10 Menubars and Menus

Menus in Jav