15.12. Collections vs Arrays

Try these first

1. 1.

   What is the primary difference in size between Collections and Arrays?

   Hint

   Think about how each data structure manages its size.

2. 2.

   Do Arrays provide type safety?

   Hint

   Consider how data types are enforced in Java.

3. 3.

   What does it mean for a Collection to be dynamic in size?

   • It can change size during runtime
   • Its size is fixed
   • Size can only be set during declaration

   Hint

   Consider how you would handle data that grows or shrinks.

4. 4.

   True or False: Arrays provide type safety at runtime.

   • True
   • False

   Hint

   Think about when type errors can be caught in Java.

5. 5.

   Imagine you're designing a student management system that needs to handle a variable number of students throughout the year. What data structure would you choose and why?

   Hint

   Consider how student numbers fluctuate over the year.

6. 6.

   You need to optimize a performance-sensitive application that processes data in a fixed format, ensuring rapid access times. What structure do you opt for and why?

   Hint

   Think about the trade-off between speed and flexibility.