1 using System;
2
3 class Algorithm
4 {
5 public void DoAlgorithm()
6 {
7 Console.WriteLine("In DoAlgorithm");
8
9 // do some part of the algorithm here
10
11 // step1 goes here
12 Console.WriteLine("In Algorithm - DoAlgoStep1");
13 // . . .
14
15 // step 2 goes here
16 Console.WriteLine("In Algorithm - DoAlgoStep2");
17 // . . .
18
19 // Now call configurable/replacable part
20 DoAlgoStep3();
21
22 // step 4 goes here
23 Console.WriteLine("In Algorithm - DoAlgoStep4");
24 // . . .
25
26 // Now call next configurable part
27 DoAlgoStep5();
28 }
29
30 virtual public void DoAlgoStep3()
31 {
32 Console.WriteLine("In Algorithm - DoAlgoStep3");
33 }
34
35 virtual public void DoAlgoStep5()
36 {
37 Console.WriteLine("In Algorithm - DoAlgoStep5");
38 }
39 }
40
41 class CustomAlgorithm : Algorithm
42 {
43 public override void DoAlgoStep3()
44 {
45 Console.WriteLine("In CustomAlgorithm - DoAlgoStep3");
46 }
47
48 public override void DoAlgoStep5()
49 {
50 Console.WriteLine("In CustomAlgorithm - DoAlgoStep5");
51 }
52 }
53
54 /// <summary>
55 /// Summary description for Client.
56 /// </summary>
57 public class Client
58 {
59 public static int Main(string[] args)
60 {
61 CustomAlgorithm c = new CustomAlgorithm();
62
63 c.DoAlgorithm();
64
65 return 0;
66 }
67 }