46 lines
801 B
C#
46 lines
801 B
C#
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using System;
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using System.Collections;
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delegate bool predicate (object a);
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class X {
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public static int Main ()
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{
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ArrayList a = new ArrayList ();
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for (int i = 0; i < 10; i++)
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a.Add (i);
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ArrayList even = Find (delegate (object arg) {
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return ((((int) arg) % 2) == 0);
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}, a);
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Console.WriteLine ("Even numbers");
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foreach (object r in even){
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Console.WriteLine (r);
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}
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if (even.Count != 5)
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return 1;
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if (((int)even [0]) != 0 ||
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((int)even [1]) != 2 ||
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((int)even [2]) != 4 ||
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((int)even [3]) != 6 ||
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((int)even [4]) != 8)
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return 2;
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return 0;
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}
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static ArrayList Find (predicate p, ArrayList source)
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{
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ArrayList result = new ArrayList ();
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foreach (object a in source){
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if (p (a))
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result.Add (a);
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}
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return result;
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}
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}
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