Arizona State University (ASU) CSE110 Principles of Programming Exam 1 Practice

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What happens in this code snippet if average is not initialized?

It will print the value of average as 91.5

It will result in a calculation error

It will print an unpredictable result

When the variable 'average' is not initialized in the code snippet, it will lead to printing an unpredictable result. In many programming languages, uninitialized variables may hold a garbage value—essentially whatever data happens to be in memory at that location. Since this state is undefined, any attempt to use 'average' in a calculation or for output can lead to results that seem random or nonsensical.

This unpredictability arises because the variable has not been explicitly set to any known value, and the content of that memory address where 'average' is supposed to be stored can vary between different runs of the program or even different environments. Therefore, without initialization, there is no guaranteed value for 'average', resulting in an outcome that cannot be predicted reliably.

Understanding the importance of initializing variables is crucial in programming to avoid such scenarios, ensure predictable behavior, and maintain code integrity.

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It will print a default value of 0.0

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