JVM & Exceptions in Java | R23 Java Exam Theory | Checked vs Unchecked | User Defined Exceptions

Описание: In this video, we are discussing JVM (Java Virtual Machine) and the concept of Exceptions which are very important topics for R23 Java semester exams.
You will learn what actually happens when dangerous statements are executed and how JVM handles exception objects internally.
🔹 Topics Covered:
What is JVM?
Normal statements vs Dangerous statements
Runtime abnormal termination concept
What is an Exception?
JVM → Predefined Class → Exception Object → Throw Mechanism
Types of Exceptions
✅ Checked Exceptions (Compile-time)
✅ Unchecked Exceptions (Run-time)
✅ User-Defined Exceptions (using throw)
Example cases:
10/0 → ArithmeticException
null.length() → NullPointerException