Lektion 12: lösningsförslag

1. // 1
2. interface IPerson
3. {
4. string Name { get; set; }
5. int Age { get; set; }
6. string Summary { get; }
7. }
9. class Student1 : IPerson
10. {
11. public string Name { get; set; }
12. public int Age { get; set; }
13. public double Points { get; set; }
14. public string Summary {
15. get
16. {
17. return Name + " is " + Age + " years old.";
18. }
19. }
20. }
22. class Teacher1 : IPerson
23. {
24. public string Name { get; set; }
25. public int Age { get; set; }
26. public double HourlySalary { get; set; }
27. public string Summary
28. {
29. get
30. {
31. return Name + " is " + Age + " years old.";
32. }
33. }
34. }
36. class Administrator1 : IPerson
37. {
38. public string Name { get; set; }
39. public int Age { get; set; }
40. public double MonthlySalary { get; set; }
41. public string Summary
42. {
43. get
44. {
45. return Name + " is " + Age + " years old.";
46. }
47. }
48. }
50. static void ShowPeople1(IPerson[] people)
51. {
52. foreach (IPerson p in people)
53. {
54. Console.WriteLine(p.Summary);
55. }
56. }
58. class Person
59. {
60. public string Name { get; set; }
61. public int Age { get; set; }
62. public string Summary
63. {
64. get
65. {
66. return Name + " is " + Age + " years old.";
67. }
68. }
69. }
71. class Student2 : Person
72. {
73. public double Points { get; set; }
74. }
76. class Teacher2 : Person
77. {
78. public double HourlySalary { get; set; }
79. }
81. class Administrator2 : Person
82. {
83. public double MonthlySalary { get; set; }
84. }
86. static void ShowPeople2(Person[] people)
87. {
88. foreach (Person p in people)
89. {
90. Console.WriteLine(p.Summary);
91. }
92. }
94. static void Main(string[] args)
95. {
96. IPerson[] people1 = new IPerson[]
97. {
98. new Teacher1 {Name="Jakob", Age=30,HourlySalary=999},
99. new Administrator1 {Name="Jakob", Age=31,MonthlySalary=12345},
100. new Student1 {Name="Jakob", Age=32,Points=20},
101. };
102. ShowPeople1(people1);
104. Person[] people2 = new Person[]
105. {
106. new Teacher2 {Name="Jakob", Age=30,HourlySalary=999},
107. new Administrator2 {Name="Jakob", Age=31,MonthlySalary=12345},
108. new Student2 {Name="Jakob", Age=32,Points=20},
109. };
110. ShowPeople2(people2);
111. }
113. // 2
114. class MyForm : Form
115. {
116. private int ClickCount = 0;
118. public MyForm()
119. {
120. Button button = new Button
121. {
122. Text = "Click Me!"
123. };
124. Controls.Add(button);
125. button.Click += OnButtonClick;
126. }
128. private void OnButtonClick(object sender, EventArgs e)
129. {
130. ClickCount += 1;
131. MessageBox.Show("Times clicked: " + ClickCount);
132. }
133. }