Java Custom exception

Custom exception:


You can define your own exception also. These exceptions are known as custom exceptions.

Note: 1. For writing custom-checked exceptions, extend the Exception class. 2. For writing custom unchecked exceptions, extend the RuntimeException class.

Java Custom Exception Example


class MyException extends Exception {
    public MyException(String message) {

class Test{
	public void display() throws MyException {
	  throw new MyException("This is a custom exception.");

public class CustomExceptionExample {
	public static void main(String args[]){
		//creating Test object.
		Test obj = new Test();
		//method call.
		}catch(Exception e){

Output This is a custom exception.


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