Checked Exceptions vs Unchecked Exceptions

In this post, we will learn the difference between Checked Exceptions and Unchecked Exceptions in Java. This is a frequently asked question in Java interviews for beginners. Let's dive into it.

Difference between Checked Exceptions and Unchecked Exceptions in Java

Features Checked Exceptions Unchecked Exceptions
Detection Time They are known at compile time. They are known at run time.
Checking They are checked at compile time. They are not checked at compile time. They occur only at run time.
Type of Exceptions These are compile-time exceptions. These are run-time exceptions.
Error Handling If these exceptions are not handled properly, they give a compile-time error. If these exceptions are not handled properly, they don’t give a compile-time error. However, the application will be prematurely terminated at run time.
Class Hierarchy All subclasses of java.lang.Exception Class, except subclasses of RuntimeException, are checked exceptions. All subclasses of RuntimeException and subclasses of java.lang.Error are unchecked exceptions.


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