15.9.1. Why Generics?

Try these first

1. 1.

   What is the main benefit of using Generics in Java?

   Hint

   Think about what happens when you use a List with a specific type.

2. 2.

   Explain how Generics improve code readability.

   Hint

   Consider a collection that accepts only one type of data.

3. 3.

   What does Generics provide in Java?

   • Type Safety
   • Faster Execution
   • Memory Management

   Hint

   Think about what is guaranteed when you declare a Generic.

4. 4.

   True or False: Generics help in preventing ClassCastException.

   • True
   • False

   Hint

   Consider how Generics restrict the types of data.

5. 5.

   Create a generic data structure to hold any type of data. Describe how you would implement it and ensure type safety.

   Hint

   Consider how generics allow you to parameterize your class definition.

6. 6.

   Implement a bounded type parameter to create a method that only accepts types that extend a specific class, like Number. Write the method signature.

   Hint

   Think about how to restrict the types allowed in your method.