Apply stragegy pattern to "duck class" (C # source code)

1. Using system;
2. Using system. text;
4. Namespace nmduck
5. {
6. Public class crunmain
7. {
8. Public static int main ()
9. {
10. // Normal duck
11. Cduck objduck = new cmallardduck ();
13. Objduck. Display ();
14. Objduck. parse mfly ();
15. Objduck. Fetch mquack ();
17. // Set for model duck;
18. Objduck = new cmodelduck ();
19. Objduck. parse mfly ();
21. Objduck. setflybehavior (New cflyrocketpowered ());
22. Objduck. parse mfly ();
24. Return 0;
25. }
26. }
28. Public abstract class cduck
29. {
30. Public abstract void display ();
32. Public void initialize mfly ()
33. {
34. This. m_objfly.fly ();
35. }
37. Public void initialize mquack ()
38. {
39. This. m_objquack.quack ();
40. }
42. Public void swim ()
43. {
44. Console. writeline ("all ducks float, even decoys! ");
45. }
47. Public void setflybehavior (iflybehavior objfly)
48. {
49. This. m_objfly = objfly;
50. }
52. Public void setquackbehavior (iquackbehavior objquack)
53. {
54. This. m_objquack = objquack;
55. }
57. Protected iquackbehavior m_objquack;
58. Protected iflybehavior m_objfly;
59. };
61. Public class cmallardduck: cduck
62. {
63. Public cmallardduck ()
64. {
65. This. m_objfly = new cflywithwings ();
66. This. m_objquack = new cquack ();
67. }
69. Public override void display ()
70. {
71. Console. writeline ("I am cmallardduc ");
72. }
73. }
75. Public class cmodelduck: cduck
76. {
77. Public cmodelduck ()
78. {
79. This. m_objfly = new cflynoway ();
80. This. m_objquack = new cquack ();
81. }
83. Public override void display ()
84. {
85. Console. writeline ("I am cmodelduck ");
86. }
88. }
90. Public interface iquackbehavior
91. {
92. Void quack ();
93. }
95. Public class cquack: iquackbehavior
96. {
97. // Iquackbehavior members
98. Public void quack ()
99. {
100. Console. writeline ("quack! ");
101. }
102. }
104. Public class cmutequack: iquackbehavior
105. {
106. // Iquackbehavior members
107. Public void quack ()
108. {
109. Console. writeline ("Silence! ");
110. }
111. }
113. Public class csqueak: iquackbehavior
114. {
115. // Iquackbehavior members
116. Public void quack ()
117. {
118. Console. writeline ("squeak! ");
119. }
120. }
122. Public interface iflybehavior
123. {
124. Void fly ();
125. }
127. Public class cflywithwings: iflybehavior
128. {
129. // Iflybehavior
130. Public void fly ()
131. {
132. Console. writeline ("I am flying! ");
133. }
134. }
136. Public class cflynoway: iflybehavior
137. {
138. // Iflybehavior
139. Public void fly ()
140. {
141. Console. writeline ("I can't fly! ");
142. }
143. }
145. Public class cflyrocketpowered: iflybehavior
146. {
147. // Iflybehavior members
148. Public void fly ()
149. {
150. Console. writeline ("I am flying with a rocket! ");
151. }
152. }
154. }