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using System;
public interface Hello {
bool MyMethod (int i);
}
public interface Another : Hello {
int AnotherMethod (int i);
}
public class Foo : Hello, Another {
public bool MyMethod (int i)
{
if (i == 22)
return true;
else
return false;
}
public int AnotherMethod (int i)
{
return i * 10;
}
}
public interface ITest {
bool TestMethod (int i, float j);
}
public class Blah : Foo {
public delegate void MyDelegate (int i, int j);
void Bar (int i, int j)
{
Console.WriteLine (i+j);
}
public static int Main ()
{
Blah k = new Blah ();
Foo f = k;
object o = k;
if (f is Foo)
Console.WriteLine ("I am a Foo!");
Hello ihello = f;
Another ianother = f;
ihello = ianother;
bool b = f.MyMethod (22);
MyDelegate del = new MyDelegate (k.Bar);
del (2, 3);
Delegate tmp = del;
// Explicit reference conversions
MyDelegate adel = (MyDelegate) tmp;
adel (4, 7);
Blah l = (Blah) o;
l.Bar (20, 30);
l = (Blah) f;
l.Bar (2, 5);
f = (Foo) ihello;
// The following cause exceptions even though they are supposed to work
// according to the spec
// This one sounds ridiculous !
// ITest t = (ITest) l;
// ITest u = (ITest) ihello;
return 0;
}
}
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