Question

Differentiate between the following :
(i) Actual and Formal parameters
(ii) Call by value and call by reference

Answer 1

Answer:

Call by value method copies the value of an argument into the formal parameter of that function. Call by reference method copies the address of an argument into the formal parameter. In call by value method, a copy of the variable is passed whereas, In call by reference method, a variable itself is passed.

Explanation: