15.11. Generic Classes and Interfaces

Try these first

1. 1.

   Define what a generic class is.

   Hint

   Think about flexibility in data types.

2. 2.

   What does the type parameter 'T' represent in a generic class?

   Hint

   Consider it as a variable for types.

3. 3.

   What does the 'T' in a generic class represent?

   • Type variable
   • Type safety
   • Type method

   Hint

   It's a placeholder for types.

4. 4.

   True or False: Generic interfaces can help in type consistency.

   • True
   • False

   Hint

   Consider how they manage data types.

5. 5.

   Implement a generic class named Container<T> that can hold a list of items of type T. Include methods to add an item, remove an item and retrieve an item by its index.

   Hint

   Think about how to manage a list-like structure within a class.

6. 6.

   Create a generic interface named Repository<T, ID> that includes methods for basic CRUD operations. Implement this interface for a hypothetical Product entity.

   Hint

   Consider what methods a generic repository must include to be functional.