Custom Exception in Java | User Defined Exceptions | Exception vs RuntimeException

Publicado em: 14 Janeiro 2026
no canal de: ShashCode

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Lecture Resources
https://github.com/Tiwarishashwat/Jav...

In this lecture, we will learn how to create User-Defined (Custom) Exceptions in Java, which helps in handling business-specific errors in a clean and meaningful way.

Instead of using generic exceptions, custom exceptions allow you to describe errors clearly and make your code more readable and maintainable.

Topics covered in this video:

What are Custom (User-Defined) Exceptions?

When and why to create custom exceptions

Creating custom exceptions by extending:

Exception (checked)

RuntimeException (unchecked)

Throwing and handling custom exceptions

Real example: Student enrollment validation

Difference between:

Error

Exception

RuntimeException

Checked vs Unchecked exceptions (revision)

With practical examples and real-world use cases, this lecture will help you write professional-grade Java code and answer advanced exception handling interview questions.

This video is part of my Java + DSA course by ShashCode, designed for:

Java beginners

College students

Placement & interview preparation

Strong Core Java & Exception Handling fundamentals

👉 Watch till the end to clearly understand when to extend Exception vs RuntimeException.

Timestamps:
0:00 - Create your own Exception
2:28 - Outro

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