dz pull

calcnew.cpp

@@ -0,0 +1,62 @@
+#include <iostream>
+#include <stdexcept>
+
+class Calculator {
+private:
+    int currentValue; 
+
+public:
+
+    Calculator(int initialValue = 0) : currentValue(initialValue) {}
+
+
+    static int calculate(const int& value1, const int& value2, const char& operation) {
+        switch (operation) {
+        case '+': return value1 + value2;
+        case '-': return value1 - value2;
+        case '*': return value1 * value2;
+        case '/':
+            if (value2 == 0) {
+                throw std::invalid_argument("Error: Division by zero!");
+            }
+            return value1 / value2;
+        default:
+            throw std::invalid_argument("Error: Unknown operation!");
+        }
+    }
+
+    Calculator& calculate(const int& value, const char& operation) {
+        currentValue = calculate(currentValue, value, operation);
+        return *this;
+    }
+
+
+    int GetCurrentValue() const {
+        return currentValue;
+    }
+
+
+    Calculator& Reset(int newValue = 0) {
+        currentValue = newValue;
+        return *this;
+    }
+};
+int main() {
+
+    int staticResult = Calculator::calculate(10, 10, '+');
+    std::cout << "Static result: " << staticResult << std::endl; 
+
+
+    Calculator my_calc;
+
+
+    int chainResult = my_calc.calculate(2, '+')
+        .calculate(4, '+')
+        .calculate(5, '-')
+        .calculate(10, '*')
+        .GetCurrentValue();
+
+    std::cout << "Chain result: " << chainResult << std::endl; 
+
+    return 0;
+}