35. What is a user defined exception

User defined exceptions may be implemented by defining a new exception class by extending the Exception class.

public class MyException extends Exception {

/* class definition of constructors goes here */

public MyException() {

super();

}

public MyException (String errorMessage) {

super (errorMessage);

}

}

Throw and/or throws statement is used to signal the occurrence of an exception.

Throw an exception:throw new MyException(“I threw my own exception.”)

To declare an exception: public myMethod() throws MyException {…}