C#.Net Migration - A2Z Dotnet

Combining method modifiers
abstract class Base
{
public void a() {} // statically bound, cannot override
public virtual void b() {} // may be overridden
public abstract void c(); // must override or redeclare abstract
public virtual void d() {} // may be overridden
}
abstract class Derived : Base
{
public sealed override void b() {} // terminal override of Base.b
public new virtual void d() {} // unrelated to Base.d, overridable
}
class MoreDerived : Derived
{
public override void b() {} // illegal: Derived.b sealed
public override void c() {} // overrides Base.c
public override void d() {} // overrides Derived.d
}
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