44. Creating your own exception classes

• Exception class you define extends class Exception or one of its subclasses

• Syntax to throw your own exception object:

  
     throw new ExceptionClassName( messageString );
  
  

• For example,

  
      public class MyDivisionByZeroException 
                                       extends Exception
      {
          public MyDivisionByZeroException()
          {
              super( "Cannot divide by zero" );
          }
  
          public MyDivisionByZeroException( String strMessage )
          {
              super( strMessage );
          }
      }