Exceptions different from checked exceptions?

Answer 1

Exceptions implement the Throwable interface in Java.

Exceptions are of two type-

Checked - These are checked at compile time.

Unchecked- These are checked at run time.

Answer 2

Checked exception is a type of exception then why there is difference?

Check for more information here.

https://www.geeksforgeeks.org/exceptions-in-java/amp/

Answer 3

if method possibly produces exceptions, if it is
checked e. - you must check it with try - catch statement
unchecked e. - you can check it, or not