⏱️ Time: 2 Hours
📊 Maximum Marks: 50

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📌 Instructions (Must Read Carefully):

• Attempt all questions.
• Each question must be implemented in separate classes/files.
• Follow proper Java naming conventions.
• Use Scanner class wherever user input is required.
• Output must be properly labeled and formatted.
• Write comments to explain important parts of your code.

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🔹 Section A – Core Programming (30 Marks)

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Q1. Class, Object & Constructor (10 Marks)

A cinema booking system needs to store movie details and display them to users.

👉 You are required to develop a Java program with the following steps:

1. Create a class named Movie.
2. Declare the following instance variables:
   • movieId (int)
   • movieName (String)
   • ticketPrice (double)
3. Create a parameterized constructor:
   • It should accept values for all variables
   • Assign values using the this keyword
4. Create a method named displayMovieDetails():
   • This method should print:
     • Movie ID
     • Movie Name
     • Ticket Price
   • Output format should be clear, for example: Movie ID: 101
     Movie Name: Avengers
     Ticket Price: 250.0
5. In the main() method:
   • Ask the user to enter details for at least 2 movies
   • Create objects using constructor
   • Call the display method for each object

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Q2. Inheritance & Method Overriding (10 Marks)

A ride-sharing application calculates fare differently based on vehicle type.

👉 Write a Java program with the following requirements:

1. Create a base class Ride:
   • Method calculateFare(double distance)
   • Default implementation should print: "Fare calculation not defined"
2. Create two subclasses:
   • BikeRide
   • CarRide
3. Override calculateFare() in both classes:
   • BikeRide:
     • Fare = distance × ₹5
   • CarRide:
     • Fare = distance × ₹10
4. In the main() method:
   • Ask user to enter distance
   • Create objects of both subclasses
   • Call the method and display calculated fare
5. Ensure:
   • Method overriding is clearly demonstrated
   • Output shows which type of ride is being calculated

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Q3. Encapsulation (10 Marks)

A library system needs to securely manage book borrowing records.

👉 Write a Java program with the following specifications:

1. Create a class LibraryAccount.
2. Declare private variables:
   • accountId (int)
   • userName (String)
   • booksIssued (int)
3. Provide:
   • Getter and Setter methods
4. Add validation in setter:
   • booksIssued should not be negative
   • If negative value is given, display "Invalid number of books"
5. Create methods:
   • issueBook() → increase booksIssued by 1
   • returnBook() → decrease booksIssued by 1 (but not below 0)
6. In the main() method:
   • Create object
   • Set initial values
   • Perform multiple issue/return operations
   • Display final account details

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🔹 Section B – Advanced OOP Concepts (20 Marks)

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Q4. Interface (10 Marks)

A payment gateway supports multiple payment options.

👉 Write a Java program as follows:

1. Create an interface PaymentMethod:
   • Method makePayment(double amount)
2. Implement this interface in:
   • DebitCardPayment
   • NetBankingPayment
3. Define method behavior:
   • DebitCard → print "Payment made using Debit Card: amount"
   • NetBanking → print "Payment made using Net Banking: amount"
4. In the main() method:
   • Use interface reference
   • Create objects of both classes
   • Call the method for both
5. Ensure:
   • Proper use of interface
   • Clear output for both payment types

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Q5. Runtime Polymorphism (10 Marks)

A food ordering app calculates total bill differently based on food type.

👉 Write a Java program with the following steps:

1. Create a class FoodOrder:
   • Method calculateBill(double price)
   • Default: return same price
2. Create subclasses:
   • VegOrder
   • NonVegOrder
3. Override the method:
   • VegOrder → add 5% tax
   • NonVegOrder → add 10% tax
4. In the main() method:
   • Use parent class reference
   • Assign objects of both subclasses
   • Call method and print final bill
5. Ensure:
   • Same method behaves differently (runtime polymorphism)
   • Output clearly shows calculation

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⭐ Bonus Question (Optional – 5 Marks)

Q6. Exception Handling with User Input

👉 Write a Java program to:

1. Ask user to enter:
   • Two integers
2. Perform division: result = number1 / number2
3. Handle exceptions:
   • Division by zero → "Error: Cannot divide by zero"
   • Invalid input → "Error: Invalid input"
4. Use:
   • try-catch blocks
   • finally block to print: Program execution completed