21.1.3. Serialization

Try these first

1. 1.

   What is serialization in Java?

   Hint

   Think about saving data.

2. 2.

   Which interface must a class implement for its objects to be serialized?

   Hint

   Look for the keyword 'Serializable'.

3. 3.

   What is serialization?

   • Converting text to bytes
   • Storing object state as bytes
   • Creating files from strings

   Hint

   Think about the purpose of saving data.

4. 4.

   True or False: A class needs to implement Serializable to be serialized.

   • True
   • False

   Hint

   Recall the definition of Serializable.

5. 5.

   Design a Serializable class called 'Book' that includes title, author, and publication year. Write a method to serialize the book object.

   Hint

   Consider the fields that define a Book object.

6. 6.

   Discuss the security concerns associated with serialization and suggest best practices to mitigate these issues.

   Hint

   Think about what happens if unknown data is processed.