C# 0 The Complete Reference

DivideByZeroException

 was created using 

new

 in the 

throw

 statement. 

Remember, 

throw

 throws an object. Thus, you must create an object for it to throw. That 

is, you can’t just throw a type. In this case, the default constructor is used to create a 

DivideByZeroException

 object, but other constructors are available for exceptions.

Most often, exceptions that you throw will be instances of exception classes that you 

created. As you will see later in this chapter, creating your own exception classes allows you 

to handle errors in your code as part of your program’s overall exception handling strategy.