Page 248 - Computer_Science_F5

Derived data types
These are data types derived from primary data types. Derived data types are array,
function, pointer, and reference.

User-defined data type Chapter Four: Object oriented programming with C++
FOR ONLINE READING ONLY
These are data types defined by the user. Such data types can determine the state
of the data, whether public, private, or protected. User-defined data type includes
structure, union, enumeration, and classes.

Activity 4.2:

Identifying data types from a program

#include<iostream>
#include<iomanip>
using namespace std;
void printMonth(int year,int month);
void printMonthTitle(int year, int month);
void printMonthName(int month);
void printMonthBody(int year, int month);
int getStartDay(int year, int month);
int getTotalNumberOfDays(int year, int month);
int getNumberOfDaysInMonth(int year, int month);
bool isLeapYear(int year);
int main()
{
int year, month;
cout<<”Enter full year: “;
cin>>year;
cout<<”Enter month in number between 1 and 12: “;
cin>>month;
cout<<endl;
printMonth(year, month);
cout<<endl;
cout<<endl;
return 0;
}

Questions:
1. Identify all data types applied in a program.
2. Write the role of each data type you have identified in (a).

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Student’s Book Form Five

Computer Science Form 5.indd 239 23/07/2024 12:33