A practical guide for Java beginners explaining why == operator fails for String comparison and why .equals() method should be used instead. This repository includes working code examples demonstrating the difference between reference comparison and value comparison, with detailed explanations of Java's memory model (Stack vs Heap).
- The difference between primitives and objects in Java
- How Stack and Heap memory work
- Why
==compares references (memory addresses) - Why
.equals()compares actual content - Best practices for String comparison in Java
Perfect for beginners who encountered the "String values are compared using '==', not 'equals()'" warning and want to understand the underlying reason.