Question

I am really interested to know that, Is it possible that using try … catch mechanism, we can avoid memory crash of our application … ??

Let say the program part that we are expecting a chance of memory leak is kept under try…catch block, if the program crashes (ie memory leak) occurs then catch statement execute. So we can prevent our program from being crashed.

Is it possible ? If yes, How Or If not , why not ??

Answer 1

A try/catch block is there to catch an exception and stop it from propagating upwards in your callstack.

The idea goes that you catch it at the place where you know how to handle it, and then you get a chance to execute code in response to the exception.

It is not a magical solution that will prevent anything, it is just what I said above. What you do with the exception is what matters.

And a memory leak and a crash is not the same thing, it is rare that a program crashes due to memory leaks, unless it actually runs out of memory. A memory leak is rarely “fixable” after the fact. The correct, and usually only, way to fix a memory leak is to avoid it happening in the first place.

Also, yes, in a way you can keep your program from crashing by adding try/catch blocks all over, but the only thing you’ve succeeded in is to hide the crash from the user, and then let the program continue running. “Crashes” are not always safe to ignore, or rather, they are usually not safe to ignore.

If you are looking for some catch-all advice on how to avoid a program crashing, here’s my advice:

• Write a program that works correctly

I think we need to know more about what kinds of problems you’re having, or you need to post a clearer question.