Exception Handling - Java - page 515

16. The output would then be

try block entered:
Leaving try block.
End of example.

17. 41.9
DoubleException thrown!

18. Yes, you can define an exception class as a derived class of the class IOException .
19. Second catch.
End of exercise.

20. The output would then be

First catch.
End of exercise.

21. The output would then be

Bingo!
End of exercise.

22. Trying
Starting sampleMethod.
Catching.
End program.

23. The output would then be

Trying
Starting sampleMethod.
Trying after call.
End program.

24. public static void doStuff( int n) throws Exception
{
if (n < 0)
throw new Exception("Negative number.");
}

25. If a method throws an exception and the exception is not caught inside the

method, then the method invocation ends immediately after the exception is
thrown. If the method invocation is inside a try block, then the exception is
thrown to a matching catch block, if there is one. If there is no catch block
matching the exception, then the method invocation ends as soon as that excep-
tion is thrown.