A programmer writes a physics engine calculating the trajectory of a projectile. Throughout the physics class, the literal decimal 9.81 appears in over a dozen different mathematical formulas. According to the course guidelines, what is the primary architectural flaw with this code, and what is the optimal solution?

Question

Answer

It is an injected dependency; the value should be dynamically provided through a setter method.

Answer

It is an abstraction violation; the mathematical calculations must be completely hidden inside an external interface.

Answer

It is a privacy leak; the literal must be protected by returning it via a defensive copy method.

Answer

It is a downcasting error; the decimal must be explicitly cast to an integer to prevent memory corruption during execution.

Answer

It is a magic number anti-pattern; the literal should be replaced with a single, named static final constant.

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A programmer writes a physics engine calculating the trajectory of a projectile....

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