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// File: arithmetic/Operations.java
package arithmetic;

public class Operations {
    public static double addition(double num1, double num2) {
        return num1 + num2;
    }

    public static double subtraction(double num1, double num2) {
        return num1 - num2;
    }

    public static double multiplication(double num1, double num2) {
        return num1 * num2;
    }

    public static double division(double num1, double num2) {
        if (num2 != 0) {
            return num1 / num2;
        } else {
            System.out.println("Cannot divide by zero.");
            return Double.NaN; // NaN represents undefined result
        }
    }
}