Java example for checked vs unchecked exception [duplicate]

Question

Is this statement/example valid for checked and unchecked exception?

Unchecked Exception: The exceptions that are not checked at compile time are called unchecked exceptions. Example:

 public class UncheckedException {

    public static void main(String[] args) {

            int value = 10/0;
        }
    }

Checked Exception: The exceptions that are checked at compile time are called Checked exceptions. Example:

public class CheckedException {

    public static void main(String[] args) {

        try {
                int value = 10/0;
            } catch (Exception e) {
                System.out.println("Caught " + e);
            }

        }
    }

Please describe your question clearly

Anil Reddy Yarragonda
– Anil Reddy Yarragonda

2015-05-10 07:43:11 +00:00
Commented May 10, 2015 at 7:43 — Anil Reddy Yarragonda
– Anil Reddy Yarragonda, Commented May 10, 2015 at 7:43

Community · Accepted Answer · 2017-05-23 11:45:17Z

4

No it is not a valid example / illustration. In both cases the exception that is thrown is an unchecked exception.

The difference between checked exceptions and unchecked exceptions is the exception class.

ArithmeticException is always an unchecked exception because it extends RuntimeException
IOException is a checked exception because it does not extend RuntimeException (or Error).

The fact that you do or don't catch the exception doesn't change its nature.

At the risk of repeating myself:

Unchecked Exception: The exceptions that are not checked at compile time are called unchecked exceptions.

Checked Exception: The exceptions that are checked at compile time are called Checked exceptions.

These are both incorrect definitions.

See also: Java: checked vs unchecked exception explanation

edited May 23, 2017 at 11:45

CommunityBot

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answered May 10, 2015 at 8:03

Stephen C

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