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Addition and Subtraction Using Polymorphism in Java
Program Listing
import java.util.Scanner;
class MathOperation {
public int performOperation(int a, int b) {
return 0; // Base class default implementation
}
}
class Addition extends MathOperation {
@Override
public int performOperation(int a, int b) {
return a + b;
}
}
class Subtraction extends MathOperation {
@Override
public int performOperation(int a, int b) {
return a - b;
}
}
public class Main {
public static void main(String[] args) {
MathOperation operation = null;
int num1, num2;
char op;
Scanner scanner = new Scanner(System.in);
System.out.println("\n\n\tAddition and Subtraction Using Polymorphism in Java\n");
System.out.print("\tEnter two numbers: ");
num1 = scanner.nextInt();
num2 = scanner.nextInt();
System.out.print("\tEnter the operation (+ for addition, - for subtraction): ");
op = scanner.next().charAt(0);
if (op == '+') {
operation = new Addition();
} else if (op == '-') {
operation = new Subtraction();
} else {
System.out.println("\tInvalid operation.");
return;
}
int result = operation.performOperation(num1, num2);
System.out.println("\n\tThe Result: " + result);
scanner.close();
System.out.println("\n\tEnd of Program. Thank you for using this program.");
}
}