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Question: How do I use structured exception handling?

Answer:

Use try/catch/finally structured exception handling blocks around code to avoid unhandled exceptions. Use finally blocks to execute code that runs whether an exception is trapped; this is useful for releasing resources such as closing files or disposing of objects.
A structured exception handling helps you create and maintain programs with robust, comprehensive error handlers. If an exception is not handled properly it might leave your application unstable and un-usable. Also finally blocks guarantees that any resources allocated in the try block of the code will get a chance to be cleaned in the finally block which is executed at the last.
Here is how you use the structured exception handling

		 try
		 {
		   // code that might throw an exception
		 }
		 catch (knownException)
		 {
		   // do exception handling
		 }
		 catch
		 {
		   // generic exception handler, do exception handling
		 }
		 finally
		 {
		   // free any allocated resources
		 }
	

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