STOP Using equals() & hashCode() WRONG! | Master Java Object Class Methods TODAY | Java Interview QA
Learn Java Object class methods the right way!
In this video, I break down toString(), equals(), and hashCode() with simple real-world examples so you finally understand why your Java objects behave the way they do.
Whether you’re preparing for Java interviews, building real projects, or strengthening core Java fundamentals — this video will make these confusing methods extremely easy.
What you’ll learn in this video:
✔ What toString() actually returns and how to override it
✔ The REAL relationship between equals() and hashCode()
✔ Why overriding only one breaks your code
✔ How HashMap, HashSet, and Collections rely on these methods
✔ Best practices + common mistakes junior developers make
✔ Simple memory model explanation for object identity
This is part of my Java Core & Best Practices series.
Next part (coming soon):
➡️ Deep dive on getClass(), clone(), wait()/notify(), and other Object class methods.
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