kuriakose

• Oct 1st, 2005

 

create a user-defind class that extends Throwable class. An object of a class that extends Throwable can be thrown and caught. 

S.V.Sita Kiran

• Oct 1st, 2005

 

We can write our own exception by deriving our class from Exception class and implementing the toString method with in own way.

d

• Mar 8th, 2006

 

To write our own Exception class

1)Our class must be subclass of Throwable or Exception class

2)Evert Exception class provide 2 constructors

   a) no arguments

   b) one argument i.e String  argument

3) Optional: Overidding toString metod of java.lang.Object

maddy_me

 Profile Answers by maddy_me 

• Sep 22nd, 2009

 

we can write our own exceptions by extending them either from Throwable or from Exception.

class Example1
{
    public static void main(String[] args) throws MyException {
       
        try
        {
        int    a = 1/0;
        } catch(Exception e)
        {
            throw new MyException();      //our own exception
        }
       
    }
}
and you can write your own exception class as:
public class MyException extends Exception {
   
    public MyException()
    {
        System.out.println("Hello ! You got Arithmetic Exception.");
    }

}