Question

Service Class
Create a class named Service with private data members to store:

08 Aug 2026
Answer :
Word Count : 1217
Create a class named `Service` with private data members to store the details of a service. In a DBMS and C++ Lab context, the class can be designed to represent one record of a service entity, similar to a row in a database table. The private data members ensure that the service information cannot be accessed or modified directly from outside the class. This principle is known as data hiding and is an important feature of object-oriented programming in C++. A suitable implementation can use data members such as `serviceId`, `serviceName`, `serviceType`, and `serviceCost`. The service ID can uniquely identify each service, the service name can store the name of the service, the service type can describe the category of service, and the service cost can store the amount charged for the service. The exact members can be changed according to the fields specified in the practical question. ```cpp #include #include using namespace std; class Service { private: int serviceId; string serviceName; string serviceType; float serviceCost; public: void setData() { cout << "Enter Service ID: "; cin >> serviceId; cin.ignore(); cout << "Enter Service Name: "; getline(cin, serviceName); cout << "Enter Service Type: "; getline(cin, serviceType); cout << "Enter Service Cost: "; cin >> serviceCost; } void displayData() { cout << "\nService ID: " << serviceId; cout << "\nService Name: " << serviceName; cout << "\nService Type: " << serviceType; cout << "\nService Cost: " << serviceCost << endl; } }; int main() { Service s; s.setData(); s.displayData(); return 0; } ``` The statement `class Service` declares a class named `Service`. A class is a user-defined data type in C++ that combines data members and member functions into a single unit. In this program, the class represents a service record. This approach is useful in database-oriented applications because database records can be represented as objects in C++. The keyword `private` is used before the data members. Therefore, `serviceId`, `serviceName`, `serviceType`, and `serviceCost` cannot be accessed directly through an object from the `main()` function. For example, a statement such as `s.serviceId = 101;` would produce an access error because `serviceId` is private. This protects the data from unauthorized direct modification. The `serviceId` member is declared as an integer because an identification number is generally represented by a numeric value. The `serviceName` and `serviceType` members are declared as `string` because they contain textual information. The `serviceCost` member is declared as `float` because the cost may contain decimal values. The `public` section contains member functions that provide controlled access to the private data. The `setData()` function is
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Related Questions

: Project: Vehicle Service Management System
You are required to design and develop a Vehicle Service Management System for an automobile service
centre. This project will be completed in two parts. In Section A, you will design the database schema and
write SQL queries. In Section B, you will develop a C++ console application to manage vehicle service
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Section A:
Design a database schema in Third Normal Form (3NF) for the Vehicle Service Management System.

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 List the names of customers who own more than one vehicle.

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Create the necessary tables to store the following information:
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 SQL Queries: 

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