Question

Assertion(A): call by value is known as pure method.

Reason(R): The original value of variable does not change as operation is performed on copied values.

Options

• Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of Assertion (A).

• Both Assertion (A) and Reason (R) are true and Reason (R) is not a correct explanation of Assertion (A).

• Assertion (A) is true and Reason (R) is false.

• Assertion (A) is false and Reason (R) is true.

Answer 1

Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of Assertion (A).

Explanation:

• The Assertion is True: A method is considered "pure" if it does its job without changing the outside data (no side effects).
• The Reason is True: Call-by-value makes a separate copy of the variable for the method to use.
• The explanation matches: Because the method only works on a copy, the original value never changes. This lack of side effects is exactly what makes it a pure method.