[Compact] public class Foo { public int a; public int b; public Foo () { a = 23; } public int sum () { return this.a + this.b; } } public class Bar : Foo { public Bar () { base (); this.b = 42; } public int mul () { return this.a * this.b; } public int mul2 () { return base.a * base.b; } } void main () { var bar = new Bar (); assert (bar.a == 23); assert (bar.b == 42); assert (bar.sum () == 65); assert (bar.mul () == 966); assert (bar.mul2 () == 966); }