What Happens If You Attempt to Use a Variable Before

question 20

Multiple Choice

What happens if you attempt to use a variable before it has been initialized?

• A) A syntax error may be generated by the compiler
• B) A runtime error may occur during execution
• C) A "garbage" or "uninitialized" value will be used in the computation
• D) A value of zero is used if a variable has not been initialized
• E) Answers A and B are correct

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Definitions:

Heuristic

A problem-solving approach using practical methods or various shortcuts that may not be perfect but are sufficient for reaching an immediate goal.

Algorithm

A precise step-by-step plan for solving a problem or accomplishing a task, often used in computing to develop software or process data.

Verbal Protocols

A research method in which participants verbalize their thoughts as they perform a task, used to gather data on cognitive processes.

Maintenance Rehearsal

A cognitive process that involves repeatedly verbalizing or thinking about a piece of information to keep it in working memory longer.