Parameter Passing

Question 1

Describes how values are passed to a function

Answer 1

Parameter Passing

Question 2

Types of Parameter Passing (2)

Answer 2

1. Pass by Value
2. Pass by Reference

Question 3

The formal parameter contains a copy of the value of the actual parameter.

Only the value is being passed.

Answer 3

Pass by Value

Question 4

The address of a variable is being passed to the function.

The formal parameter points to the actual parameter.

The matching formal parameter is a pointer.

Answer 4

Pass by Reference

Question 5

When to use pass by value?

Answer 5

1. When you are NOT changing the actual parameter
2. When you are returning ONLY ONE value

Question 6

When to use Pass by Reference?

Answer 6

1. When you need to change the value of the actual parameter
2. When you need to modify two or more values