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A superclass Flight has been defined to store the details of a flight. Define a subclass Passenger…

Computer Science20255 marksProgram
A superclass Flight has been defined to store the details of a flight. Define a subclass Passenger to calculate the fare for a passenger. The details of the members of both the classes are given below: Class name : Flight Data members/instance variables: flightno : to store the flight number in string dep_time : to store the departure time in string arr_time : to store the arrival time in string basefare : to store the base fare in decimal Methods/Member functions: Flight(...) : parameterised constructor to assign values to the data members void show( ) : to display the flight details Class name : Passenger Data members/instance variables: id : to store the ID of the passenger name : to store the name of the passenger tax : to store the tax to be paid in decimal tot : to store the total amount to be paid in decimal Methods/Member functions: Passenger(...) : parameterised constructor to assign values to the data members of both the classes void cal( ) : to calculate the tax as 5% of base fare and total amount (base fare + tax) void show( ) : to display the flight details along with the passenger details and total amount to be paid Assume that the super class Flight has been defined. Using the concepts of Inheritance, specify the class Passenger giving the details of constructor(...), void cal( ) and void show( ). The super class, main function and algorithm need NOT be written.

Answer

Answer

AI
class Passenger extends Flight
{
    int id;
    String name;
    double tax, tot;

    Passenger(String fn, String dt, String at, double bf, int i, String n)
    {
        super(fn, dt, at, bf);
        id = i;
        name = n;
        tax = 0.0;
        tot = 0.0;
    }

    void cal()
    {
        tax = 0.05 * basefare;
        tot = basefare + tax;
    }

    void show()
    {
        super.show();
        System.out.println("Passenger ID: " + id);
        System.out.println("Passenger Name: " + name);
        System.out.println("Tax: " + tax);
        System.out.println("Total Amount: " + tot);
    }
}
Explanation: Passenger extends Flight. Its constructor calls super(...) to initialise the inherited Flight data members, then sets its own. cal() computes tax as 5% of basefare (inherited from Flight) and the total as basefare+tax. show() calls super.show() to print the flight details, then prints the passenger details and total. Tested (with a stub Flight class and main) - correctly prints flight details, tax = 250.0 and total = 5250.0 for a base fare of 5000.0.
Inheritance, Interfaces and Polymorphism

From ISC 2025 Computer Science Paper 1, question 10.