The document outlines a lesson plan for ICT 104 focusing on programming and parameter passing mechanisms, including both pass-by-value and pass-by-reference techniques. It provides a structured approach to defining functions in programming, illustrating their usage with code examples. The document also includes an exercise for students to implement a function that sums two integers provided by the user.

1. ICT 104, Programming 2
PARAMETER
PASSING
MECHANISMS
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Arruejo, Richard C.
Callejo, Arpee M.
DIT I
Saint Paul University, Tuguegarao, Cagayan

2. STRATEGY
▸Gamification
▸Hands-on Activity(Peer-Programming)

3. OBJECTIVES
At the end of lesson, the student is expected to learn
how to pass by parameter and call functions.

4. GAMIFICATION

5. GAMIFICATION

6. GAMIFICATION

7. GAMIFICATION

8. GAMIFICATION

9. GAMIFICATION

10. GAMIFICATION

11. GAMIFICATION

12. GAMIFICATION

13. PROCEDURES
▸Functions allow to structure programs in segments of code to perform
individual tasks.
A group of statements that is given a name, and which can be called from
some point of the program. The most common syntax to define a function is:
type name ( parameter1, parameter2, ...) { statements }
Where:
- type is the type of the value returned by the function.
- name is the identifier by which the function can be called.
- parameters (as many as needed): Each parameter consists of a type
followed by an identifier, with each parameter being separated from the next
by a comma
- statements is the function's body. It is a block of statements surrounded by
braces { } that specify what the function actually does.

14. EXAMPLES
// No & means: pass-by-value
double fun ( double a, double b )
{
double m;
a = a + 1;
b = b + 2;
m = a + b;
return(m);
}
int main(int argc, char **argv)
{
double x = 1.0, y = 4.0;;
double r;
r = fun( x, y );
cout << x << endl;
cout << y << endl;
cout << r << endl;
}
// With & means: pass-by-reference
double fun ( double & a, double & b )
{
double m;
a = a + 1;
b = b + 2;
m = a + b;
return(m);
}
int main(int argc, char **argv)
{
double x = 1.0, y = 4.0;;
double r;
r = fun( x, y );
cout << x << endl;
cout << y << endl;
cout << r << endl;
}

15. EXERCISE
▸Exercise 3.1
▸Write a program with a function that takes two int parameters, adds them
together, then returns the sum. The program should ask the user for two
numbers, then call the function with the numbers as arguments, and tell the user
the sum.

16. ASSESSMENT
Correctness of the code 60%
Structure 40%
Total 100%

17. thanks!
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Arruejo, Richard C.
Callejo, Arpee M.
DIT I, Saint Paul University, Tuguegarao, Cagayan