D3 Exceptions
- 2. Contents What are Exceptions? The try Statement The Exception Classes The catch Cause The finally Block Throwing Exceptions
- 3. What are Exceptions? An exception is a runtime error in a program. Examples are when a program tries to divide a number by 0.
- 6. The catch Clause The catch clause handles exceptions. There are three forms, allowing different le vels of processing
- 8. The finally Block If a program’s flow of control enters a try statement that has a finally block, the finally bloc k is always executed If no exception occurs inside the try block, then at the end of the try block, control skips over any catch claus es and goes to the finally block If an exception occurs inside the try block, then any appropriate catch clauses in the catch clauses section are executed, followed by execution of the finally bloc k
- 10. Throwing Exceptions You can make your code explicitly raise an exception by using the throw statement . The syntax for the throw statement is the following