What are the differences between checked and unchecked exceptions in Java?

What are the differences between checked and unchecked exceptions in Java?

In Java, checked exceptions are checked at compile-time, while unchecked exceptions are checked at runtime. Checked exceptions must be either caught or declared in the method signature, whereas unchecked exceptions do not have this requirement.

Can you give me examples of each type?

Sure! An example of a checked exception is IOException, which must be handled or declared. An example of an unchecked exception is NullPointerException, which occurs at runtime.

Why would I use checked exceptions instead of unchecked ones?

Checked exceptions are useful for recoverable conditions, allowing the caller to handle the exception. Unchecked exceptions indicate programming errors that should be fixed rather than handled.

Are there any best practices for using exceptions in Java?

Yes, some best practices include using specific exceptions, avoiding excessive use of checked exceptions, and documenting exceptions in method signatures.