What are code smells and automated refactoring.

1. Code Smells And Automated Refactoring Janeve George [email_address] Amit Goyal [email_address] Presented By:

3. Parking lot

4. Feedback stickies

6. Code Refactoring

7. Automated Refactoring

8. Code Smells

9. Quiz

10. Refactoring Workshop

12. Automated Refactoring

13. Code Smells

14. Quiz

15. Refactoring Workshop

16. The Problem

19. Code Smells

20. Quiz

21. Refactoring Workshop

23. Change in the internal structure

24. No change in the external behavior

25. java.util.Calendar c = java.util.Calendar.getInstance(); c.set(2010, java.util.Calendar.APRIL, 25); Date today = c.getTime();

26. Date today = april(25, 2010);

27. double getPayAmount() { double result; if (_isDead) { // Get the dead amount result = getAmount1(); } else { if (_isSeparated)) { // Get the separated amount result = getAmount2(); } else { if (_isRetired) { // Get the retired amount result = getAmount3(); } else { // Get the normal amount result = getAmount4(); } } } return result; }

28. double getPayAmount() { if (_isDead) return deadAmount(); if (_isSeparated) return separatedAmount(); if (_isRetired) return retiredAmount(); return normalPayment(); }

30. Code Refactoring

32. Quiz

33. Refactoring Workshop

34. Automated Refactoring

36. Code Refactoring

37. Automated Refactoring

39. Refactoring Workshop

41. Long Method

42. Large Class

43. Switch Statements

44. Feature Envy

45. Magic Number

46. Comments

47. Improper Name

48. & Many More....

49. Duplicate Code

50. Long Method

51. Large Class

52. Switch Statements

53. Feature Envy

54. Magic Numbers

55. Comments

56. Improper Naming

58. Code Refactoring

59. Automated Refactoring

60. Code Smells

63. if( isSpecialDeal() ) { total = price * 0.95; send(); } else { total = price * 0.98; send(); } Identify code smells in the following code snippet and suggest remedies:

64. Refactor the following code: int d; // elapsed time in days

65. What are the remedies to deal with a large class?

66. Refactoring helps in __________, ___________, __________.

67. double potentialEnergy(double mass, double height) { return mass * 9.81 * height; } Identify code smells in the following code snippet:

68. Large class violates _____________ principle.

69. What are the techniques/remedies to deal with a long method?

71. improve code readability

72. make it simple Renaming a method helps to (choose any one option):

73. Duplicate code violates ___________ principle.

74. void printOwning(double amount) { printBanner(); //Print details System.out.println("name"+ _name); System.out.println("amount" + amount); } Identify code smells in the following code snippet and suggest remedies:

75. //Calculate perimeter double temp = 2 * (_height + _width); Refactor the following code:

76. double disabilityAmount() { if( _seniority < 2 ) return 0; if( _monthsDisabled > 12 ) return 0; if( _isPartTime) return 0; ..... ..... } Refactor the following code:

78. Code Refactoring

79. Automated Refactoring

80. Code Smells

81. Quiz

82. Refactoring Workshop

85. References

86. [email_address] [email_address]