The postcondition of a function
A) determines how the function will complete its job.
B) tells what must be true before the function executes.
C) declares the function for the compiler.
D) tells what will be true after the function executes.

Question

Quizplus · Accepted Answer

The postcondition of a function specifies what the function will achieve or guarantee after it has completed execution. It describes the expected state or behavior of the program's variables or objects that were affected by the function. Therefore, option D is the most appropriate choice. Option A is incorrect because the preconditions determine how the function will operate, but not necessarily how it will finish. Option B is incorrect because it describes the state or condition that must be true before the function is called or invoked, not after. Option C is incorrect because the function's signature or declaration specifies its name, input parameters, return type, and accessibility, not its behavior or guarantees.

The Postcondition of a Function