Question

"Function to return the result of adding num1 and num2 Parameters num1(int): Integer value to be added num2(int): Integer value to be added Return: int: The sum, num1+num2".

a) Function Prototype
b) Code Commenting
c) Variable Declaration
d) Arithmetic Operation

Answer 1

To create a function that calculates the sum of two integers, one defines the function prototype, declares variables as parameters, conducts the addition operation, and returns the sum as the result. The code includes comments explaining each part.

Step-by-step explanation:

Function Prototype, Code Commenting, Variable Declaration, and Arithmetic Operation

To create a function that returns the sum of two integers, we first declare the function prototype, which gives the compiler information about the function name, its parameters, and its return type. Then, we declare variables num1 and num2 as parameters within this function. Inside the function, we perform an arithmetic operation, specifically addition, to calculate the sum of num1 and num2. The result of this operation is then returned as an integer.

Here is an example of how this might look in code:

// Function prototype
int addNumbers(int num1, int num2);

// Function definition
int addNumbers(int num1, int num2) {
// Variable declaration is implicit in the parameters
// Arithmetic operation to add num1 and num2
int sum = num1 + num2;
// Return the result of the operation
return sum;
}

The commutative property of addition illustrated by the example 2 + 3 or 3 + 2 applies here, confirming that the order of the operands does not change the result. The function will return the same result whether the arguments passed are (num1, num2) or (num2, num1).