Class StackExample

java.lang.Object

topics.foundation.structures.StackExample

public class StackExample
extends Object

Legacy Stack Demonstration

Demonstrates the structural operations of the legacy java.util.Stack class. While originally designed to represent a Last-In-First-Out (LIFO) collection, its architectural inheritance from java.util.Vector exposes it to index-based operations that directly violate strict stack contracts.

Architectural Note: In modern Java development, java.util.ArrayDeque is strongly preferred for LIFO stack semantics, as it avoids the synchronized threading overhead of Vector and enforces a much stricter operational boundary.

Complexity

• Time Complexity:
  • O(1) amortized for standard top-of-stack operations (push, pop, peek).
  • O(N) for inherited vector operations like indexed insertions or arbitrary object removals, which require array shifting.
• Space Complexity: O(N) to maintain the underlying dynamically resizing array.

Author:

vicegd

Constructor Summary

Constructors

Constructor	Description
StackExample()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)	Main execution entry point.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

StackExample

public StackExample()

Method Details

main

public static void main(String[] args)

Main execution entry point.

Parameters:

args - Command-line arguments (not utilized).