Checked Exceptions extend Throwable class, but they do not extend

RuntimeException or Error classes. UncheckedException extend

RuntimeException class.

Checked Exceptions are checked at compile time in Java.

Unchecked Exceptions happen at Runtime, so they are not checked

at compile time.

IOException, SQLException etc. are examples of Checked

Exceptions. NullPointerException, ArithmeticException etc. are

examples of Unchecked Exceptions.

https://rollbar.com/blog/how-to-handle-checked-unchecked-exceptions-in-java/