Building Data Mining Tools Using JDM - Java Data Mining: Strategy, Standard, and Practice - page 371

18. lIndicatorsPanel.add(new JLabel("Lift:", JLabel.RIGHT));

19. lIndicatorsPanel.add(lLiftLabel);

20. final JLabel lNegativeCasesLabel new JLabel();

21. lIndicatorsPanel.add(new JLabel("Number Of Negative Cases:",

22. JLabel.RIGHT));

23. lIndicatorsPanel.add(lNegativeCasesLabel);

24. final JLabel lPositiveCasesLabel new JLabel();

25. lIndicatorsPanel.add(new JLabel("Number Of Positive Cases:",

26. JLabel.RIGHT));

27. lIndicatorsPanel.add(lPositiveCasesLabel);

28. final JLabel lPercentageSizeLabel new JLabel();

29. lIndicatorsPanel.add(new JLabel("Percentage Size:",

30. JLabel.RIGHT));

31. lIndicatorsPanel.add(lPercentageSizeLabel);

32. final JLabel lTargetDensityLabel new JLabel();

33. lIndicatorsPanel.add(new JLabel("Target Density:",

34. JLabel.RIGHT));

35. lIndicatorsPanel.add(lTargetDensityLabel);

The preceding code defines the lIndicatorsPanel that contains the
five elements that are updated each time the user selects a segment of
the population. The following lines create the upper part as the
lNorthPanel to contain both sections:

36. JPanel lNorthPanel new JPanel(new BorderLayout());

37. lNorthPanel.add(lSliderPanel, BorderLayout.NORTH);

38. lNorthPanel.add(lIndicatorsPanel, BorderLayout.SOUTH);

Then, a local listener class is defined to update the values of the
selected segment's statistics.

39. // Local listener

40. ChangeListener lChangeListener new ChangeListener() {

41. public void stateChanged(ChangeEvent iE) {

42. int lLowerValue lLowerIndexSlider.getValue();

43. lLowerLabel.setText("" lLowerValue);

44. int lUpperValue lUpperIndexSlider.getValue();

45. lUpperLabel.setText("" lUpperValue);

46. if (iE.getSource() lLowerIndexSlider) {

47. if (lLowerValue > lUpperValue) {

48. lUpperIndexSlider.setValue(lLowerValue);

49. }

50. } else {

51. if (lLowerValue > lUpperValue) {

52. lLowerIndexSlider.setValue(lUpperValue);

53. }