Question

I have two classes namely classA and classB which both inherit from class1.

Now I want to send a string like “A” based on that I should instantiate class A

My boss asked me to use enum instead of using switch case to write the code.

How do i go about writing this.

Answer 1

You could create a lookup factory

_map = new Dictionary<Option, Func<Class1>>();

_map.Add(Option.A, () => new ClassA());
_map.Add(Option.B, () => new ClassB());

An then in the resolve to get the correct class

public Class1 Resolve(Option option)
{
   Func<Class1> result;
   if(_map.TryGetValue(option, out result))
      return result();
   else
      return null;

}