Addition and Subtraction Using Polymorphism in Python

 class MathOperation:

    def perform_operation(self, a, b):

        return 0  # Base class default implementation

class Addition(MathOperation):

    def perform_operation(self, a, b):

        return a + b

class Subtraction(MathOperation):

    def perform_operation(self, a, b):

        return a - b

if __name__ == "__main__":

    operation = None

    num1, num2 = 0, 0

    print("\n\n\tAddition and Subtraction Using Polymorphism in Python\n")

    num1 = int(input("\tEnter the first number: "))

    num2 = int(input("\tEnter the second number: "))

    

    op = input("\tEnter the operation (+ for addition, - for subtraction): ")

    if op == '+':

        operation = Addition()

    elif op == '-':

        operation = Subtraction()

    else:

        print("\tInvalid operation.")

        exit()

    result = operation.perform_operation(num1, num2)

    print("\n\tThe Result:", result)

    print("\n\tEnd of Program. Thank you for using this program.")

Addition and Subtraction Using Polymorphism in Python

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Multiply Two Numbers Using a Class in PHP

 <?php

// Multiplier.php

// Author  : Dr. Jake Rodriguez Pomperada, MAED-IT, MIT, PHD-TM

// Date    : April 26, 2024  1:54 PM  Friday

// Tools   : Microsoft Visual Studio

//           PHP 8.1.3

// Website : http://www.jakerpomperada.com

// YouTube Channel : https://www.youtube.com/jakepomperada

// Email   : jakerpomperada@gmail.com

class Multiplier {

    // Declare instance variables with default values

    private float $num1 = 0.0;

    private float $num2 = 0.0;

    private float $result = 0.0;

    // Method to set the two numbers

    public function setNumbers(float $number1, float $number2): void {

        $this->num1 = $number1;

        $this->num2 = $number2;

    }

    // Method to get the first number

    public function getNum1(): float {

        return $this->num1;

    }

    // Method to get the second number

    public function getNum2(): float {

        return $this->num2;

    }

    // Method to perform multiplication

    public function multiply(): void {

        $this->result = $this->num1 * $this->num2;

    }

    // Method to get the result

    public function getResult(): float {

        return $this->result;

    }

}

// Create an instance of the Multiplier class

$multiplier = new Multiplier();

// Set the numbers

$multiplier->setNumbers(12.40, 4.21);

// Perform the multiplication

$multiplier->multiply();

// Get the result and instance variables using public methods

$product = $multiplier->getResult();

$valOne = $multiplier->getNum1();

$valTwo = $multiplier->getNum2();

// Print the result

echo "\n\tMultiply Two Numbers Using a Class in PHP\n";

echo "\n\tFirst Value     :  $valOne\n";  // Print the value of num1

echo "\tSecond Value    :  $valTwo\n";  // Print the value of num2

echo "\tThe Result      :  $product\n";  // Print the multiplication result

echo "\n\tEnd of Program\n\n";

?>

Multiply Two Numbers Using a Class in PHP

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