Object Oriented Programming Through Java by Pearson

Adapter Class 8.21

28. label = new JLabel();

29. label.setText(“Count = ” +count);

30. button.addMouseListener(new HandleMouseEvent());

31. add(button);

32. add(label);

33. setBackground(Color.WHITE);

34. }

35. class HandleMouseEvent implements MouseListener{

36. public void mouseClicked(MouseEvent e) {

37. count++;

38. label.setText(“Count = ” +count);

39. }

40. public void mouseEntered(MouseEvent e) {

41.

42.

setBackground(Color.YELLOW);

43. }

44. public void mouseExited(MouseEvent e) {

45. setBackground(Color.WHITE);

46.

47.

}

48. public void mousePressed(MouseEvent e) {

49.

50.

}

51. public void mouseReleased(MouseEvent e) {

52.

53.

}

54. }

55. }

In this example, we handle two tasks: one is to count the number of times ...