Java List Interface Deep Dive | ArrayList, LinkedList, Vector, Stack | Java Full Course #32
In this video, we take a complete deep dive into the List Interface in Java, understanding it from first principles, not just how to use it, but how it actually works internally.
If you've been using ArrayList or LinkedList without truly understanding what’s happening behind the scenes, this video will give you real clarity.
We cover:
What is List Interface and why it exists
All important methods in List:
add(), add(index)
get(), set()
remove()
indexOf(), lastIndexOf()
Positional access vs iteration
Internal behavior of:
ArrayList (dynamic array resizing, shifting)
LinkedList (node structure, pointers)
Vector & Stack (legacy behavior)
Performance comparison and when to use what
Real intuition to think like a Java developer
This is not a surface-level tutorial, it’s a concept-building session designed for:
Beginners who want strong fundamentals
Developers preparing for interviews
Anyone serious about mastering Java Collections
If you understand this video deeply, List in Java will never confuse you again.
Why Learn Java?
Java is one of the most powerful and widely used programming languages in the world.
It is used in:
Backend development
Enterprise applications
Android development
Banking systems
Large-scale distributed systems
If you want to master Data Structures, Spring Boot, Microservices, or System Design, Java fundamentals are essential.
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