15.11.2. Generic Interface

Try these first

1. 1.

   What is a Generic Interface in Java?

   Hint

   Think about flexibility in programming.

2. 2.

   Create a Generic Interface named 'Storage' with a method 'store(T item)'.

   Hint

   Remember to include the type parameter.

3. 3.

   What does a Generic Interface allow in Java?

   • A. Only integer types can be used
   • B. Flexibility to use various data types
   • C. It makes all types unsafe

   Hint

   Think about why generics were introduced.

4. 4.

   Is it true that generic interfaces help in preventing type errors?

   • True
   • False

   Hint

   Consider the benefits of using generics.

5. 5.

   Design and implement a Generic Interface called 'Processor' with a method 'process(T data)'. Then implement this interface in a class for processing Strings.

   Hint

   Focus on ensuring the 'process' method works with the specified type.

6. 6.

   Create a class 'NumberStorage' that implements the 'DataStore' interface ensuring it only accepts Numbers. Discuss how type safety is achieved.

   Hint

   Use the bounds of generics to limit the types.