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What is the purpose of the const keyword in C++?

A. To indicate that a variable may be changed unexpectedly by hardware or another thread

B. To indicate that a variable cannot be modified

C. To specify that a function cannot be overridden

D. To specify that a variable's value cannot be changed once initialized

Answer: Option D


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Related Questions on C plus plus miscellaneous

What is the difference between '++i' and 'i++' in C++?

A. None of the above

B. They both have the same effect

C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it

D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it