Answer to Question #295626 in Java | JSP | JSF for Aashish

Question

Write two complete classes (FeeStructur2020 & FreeStructur2021) that implements FeeStructure interface

Suppose:

FeeStructure2020 calculates the fee based on the following

• · PKR 4,100 per creditHour when type is set to “theory”
• · PKR 12,250 per creditHour when type is set to “lab”

FeeStructure2021 calculates the fee based on the following

• ·  PKR 4,600 per creditHour when type is set to “theory”
• ·  PKR 13,750 per creditHour when type is set to “lab”

Answer 1

interface FeeStructure {
	double calculateFee(int creditHour, String type);


	double calculateFee(int creditHour, String type, int discountPercent);
}


class FeeStructur2020 implements FeeStructure {


	/**
	 * PKR 4,100 per creditHour when type is set to "theory" PKR 12,250 per
	 * creditHour when type is set to "lab"
	 */
	@Override
	public double calculateFee(int creditHour, String type) {
		if (type.compareToIgnoreCase("theory") == 0) {
			return 4100 * creditHour;
		}
		if (type.compareToIgnoreCase("lab") == 0) {
			return 12250 * creditHour;
		}
		return 0;
	}


	@Override
	public double calculateFee(int creditHour, String type, int discountPercent) {
		double fee = calculateFee(creditHour, type);
		return fee - ((fee * (double) discountPercent) / 100.0);
	}


}


class FreeStructur2021 implements FeeStructure {
	/**
	 * PKR 4,600 per creditHour when type is set to "theory" PKR 13,750 per
	 * creditHour when type is set to "lab"
	 */
	@Override
	public double calculateFee(int creditHour, String type) {
		if (type.compareToIgnoreCase("theory") == 0) {
			return 4600 * creditHour;
		}
		if (type.compareToIgnoreCase("lab") == 0) {
			return 13750 * creditHour;
		}
		return 0;
	}


	@Override
	public double calculateFee(int creditHour, String type, int discountPercent) {
		double fee = calculateFee(creditHour, type);
		return fee - ((fee * (double) discountPercent) / 100.0);
	}
}


class App {


	public static void main(String[] args) {
		FeeStructur2020 FeeStructur2020 = new FeeStructur2020();
		FreeStructur2021 FreeStructur2021 = new FreeStructur2021();


		System.out.println("FeeStructur2020: " + FeeStructur2020.calculateFee(10, "theory"));
		System.out.println("FeeStructur2020 discountPercent: " + FeeStructur2020.calculateFee(25, "lab", 10));


		System.out.println("FreeStructur2021: " + FreeStructur2021.calculateFee(20, "lab"));
		System.out.println("FreeStructur2021 discountPercent: " + FreeStructur2021.calculateFee(5, "theory", 20));
	}
}