What is the performance of stacks in Java?

What is the performance of stacks in Java?

In Java, stacks are typically implemented using the Stack class or Deque interface. The performance for basic operations like push, pop, and peek is O(1) in both implementations.

Are there any differences in performance between using Stack and ArrayDeque?

Yes, ArrayDeque generally offers better performance than Stack because it avoids the overhead of synchronization that Stack has, making it more efficient for single-threaded applications.

When should I use a stack over other data structures?

You should use a stack when you need to manage data in a last-in, first-out (LIFO) manner, such as in function call management, undo mechanisms, or parsing expressions.

Can you give an example of a real-world application of stacks?

Sure! A common real-world application of stacks is in web browsers for managing the history of pages visited. When you navigate back, the most recent page is popped from the stack.