Merge pull request #251 from abhishekmail-prog/add-simple-calculator-cpp

Add SimpleCalculator.cpp in Playground/abhishekmail-prog

Author: B3rou

Playground/abhishekmail-prog/SimpleCalculator.cpp

@@ -0,0 +1,84 @@
+/*
+=====================================================
+Simple Calculator
+Author: Abhishek
+Language: C++
+Repository: Polyglot-Calculators
+
+Description:
+A simple menu-driven calculator that performs:
+1. Addition
+2. Subtraction
+3. Multiplication
+4. Division
+
+=====================================================
+*/
+
+#include <iostream>
+using namespace std;
+
+double add(double a, double b);
+double subtract(double a, double b);
+double multiply(double a, double b);
+double divide(double a, double b);
+
+int main() {
+    int choice;
+    double num1, num2;
+
+    do {
+        cout << "\n==== Simple Calculator ====\n";
+        cout << "1. Add\n";
+        cout << "2. Subtract\n";
+        cout << "3. Multiply\n";
+        cout << "4. Divide\n";
+        cout << "5. Exit\n";
+        cout << "Enter your choice: ";
+        cin >> choice;
+
+        if (choice >= 1 && choice <= 4) {
+            cout << "Enter two numbers: ";
+            cin >> num1 >> num2;
+
+            switch (choice) {
+                case 1:
+                    cout << "Result: " << add(num1, num2) << endl;
+                    break;
+                case 2:
+                    cout << "Result: " << subtract(num1, num2) << endl;
+                    break;
+                case 3:
+                    cout << "Result: " << multiply(num1, num2) << endl;
+                    break;
+                case 4:
+                    if (num2 == 0) {
+                        cout << "Error: Division by zero not allowed.\n";
+                    } else {
+                        cout << "Result: " << divide(num1, num2) << endl;
+                    }
+                    break;
+            }
+        } else if (choice != 5) {
+            cout << "Invalid choice. Try again.\n";
+        }
+
+    } while (choice != 5);
+
+    cout << "Exiting calculator. Goodbye!\n";
+    return 0;
+}
+
+double add(double a, double b) {
+	return a + b; 
+}
+double subtract(double a, double b) { 
+	return a - b; 
+}
+double multiply(double a, double b) { 
+	return a * b; 
+}
+double divide(double a, double b) {
+	return a / b; 
+}
+