Object Oriented Programming

Daffodil International University Faculty of Science & Information Technology Department of Software Engineering Course Code: SE 217; Course Title: Object Oriented Programming Lab Question 4: Courier Delivery Service A courier company delivers different types of packages. Every package contains a tracking number, receiver name, and weight (kg). The company provides three delivery services: • StandardDelivery – Charge = Weight × BDT 50 • ExpressDelivery – Charge = Weight × BDT 80 + BDT 200 service fee • InternationalDelivery – Charge = Weight × BDT 150 + BDT 1,000 customs fee Requirements 1. Create a superclass Package. 2. Create subclasses StandardDelivery, ExpressDelivery, and InternationalDelivery. 3. Override the method calculateDeliveryCharge(). 4. Implement a method displayPackageInfo(). 5. In the main() method: o Create 3 objects of each delivery type. o Calculate and display the delivery charge using runtime polymorphism. Lab Evaluation Instructions • Write the Java code in your IDE (e.g., IntelliJ IDEA, Eclipse, or NetBeans). • Compile and run the program. • Open a new Microsoft Word document. • Take clear screenshots of: o The complete Java source code. o The program output. • Paste both screenshots into the Word document and make it pdf. • Save the document using the format: StudentID(Last 3 digit)_Name.pdf. [211_Mehedi.pdf] • Upload the pdf to BLC before the submission deadline.