c# - Interface inheritance and derived classes

Question

Why can't I do something like this in c# (pseudo code follows)

Interface1
{
    Method1();   
}

Interface2 : Interface1
{
    Method2();
}

Class1 : Interface1
{
    Method1()
    {
    }
}

Class2 : Class1, Interface2
{
    Method2()
    {
    }
}

Answer 1

You can, if you correct your mistake in defining an interface and specify a return type on your methods.

interface Interface1
{
    void Method1();   
}

interface Interface2 : Interface1
{
    void Method2();
}

class Class1 : Interface1
{
    public void Method1()
    {
    }
}

class Class2 : Class1, Interface2
{
    public void Method2()
    {
    }
}