hw6_27.06.17

Bondarenko Artemi/hw6_27.06.17/calculator.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include "operation.h"
+#include <vector>
+
+
+class Calculator
+{
+private:
+	std::vector<Operation*> m_operations = { 
+		new SummOperation(), new DeductOperation(),
+		new DivideOperation(), new MultiplyOperation(),
+		new SinusOperation(), new CosineOperation(),
+		new ExponentOperation() };
+
+public:
+	void ShowMenu()
+	{
+		int count = 1;
+		for (auto it : m_operations)
+		{
+			std::cout << count++ << " - " << it->GetName() << "\n";
+		}
+
+		std::cout << "0 - Exit\nPlease choose operation: ";
+	}
+
+	std::vector<Operation*>::iterator Begin()
+	{
+		auto it = m_operations.begin();
+		return it;
+	}
+
+	int GetOperationCuantity()
+	{
+		return m_operations.size();
+	}
+
+	void ExecuteOperation(Operation* operation)
+	{
+		operation->Execute();
+	}
+};

Bondarenko Artemi/hw6_27.06.17/main.cpp

@@ -0,0 +1,28 @@
+#include "calculator.h"
+
+void main()
+{
+	std::cout << "Welcome to Calculator!" << std::endl;
+	Calculator calc;
+	std::vector<Operation*>::iterator it;
+	int choice;
+	while (true)
+	{
+		it = calc.Begin();
+		calc.ShowMenu();
+		std::cin >> choice;
+		if (choice > 0 && choice <= calc.GetOperationCuantity())
+		{
+			it += choice - 1;
+			calc.ExecuteOperation(*it);
+			continue;
+		}
+		else if (choice == 0)
+		{
+			break;
+		}
+		std::cout << "There is no such item!" << std::endl;
+
+	}
+	std::cout << "Good luck!" << std::endl;
+}

Bondarenko Artemi/hw6_27.06.17/operation.h

@@ -0,0 +1,159 @@
+#pragma once
+
+#include <string>
+#include <iostream>
+#include <cmath>
+
+
+class Operation
+{
+protected:
+	std::string m_name;
+
+public:
+	Operation(std::string name) : m_name(name)
+	{
+	}
+
+	std::string GetName() const
+	{
+		return m_name;
+	}
+
+	virtual void Execute() = 0;
+
+};
+
+
+class SummOperation : public Operation
+{
+public:
+	SummOperation() : Operation("Summ")
+	{
+	}
+
+	void Execute() override
+	{
+		double num1;
+		double num2;
+		std::cout << "Enter first number: ";
+		std::cin >> num1;
+		std::cout << "Enter second number: ";
+		std::cin >> num2;
+		std::cout << num1 << " + " << num2 << " = " << num1 + num2 << std::endl;
+	}
+};
+
+
+class DeductOperation : public Operation
+{
+public:
+	DeductOperation() : Operation("Deduct")
+	{
+	}
+
+	void Execute() override
+	{
+		double num1;
+		double num2;
+		std::cout << "Enter minuend number: ";
+		std::cin >> num1;
+		std::cout << "Enter subtrahend: ";
+		std::cin >> num2;
+		std::cout << num1 << " - " << num2 << " = " << num1 - num2 << std::endl;
+	}
+};
+
+
+class DivideOperation : public Operation
+{
+public:
+	DivideOperation() : Operation("Divide")
+	{
+	}
+
+	void Execute() override
+	{
+		double num1;
+		double num2;
+		std::cout << "Enter dividend number: ";
+		std::cin >> num1;
+		std::cout << "Enter divider: ";
+		std::cin >> num2;
+		if (num2 == 0)
+		{
+			std::cout << "Can not divided by 0" << std::endl;
+			return;
+		}
+		std::cout << num1 << " / " << num2 << " = " << num1 / num2 << std::endl;
+	}
+};
+
+class MultiplyOperation : public Operation
+{
+public:
+	MultiplyOperation() : Operation("Multiply")
+	{
+	}
+
+	void Execute() override
+	{
+		double num1;
+		double num2;
+		std::cout << "Enter first number: ";
+		std::cin >> num1;
+		std::cout << "Enter second number: ";
+		std::cin >> num2;
+		std::cout << num1 << " * " << num2 << " = " << num1 * num2 << std::endl;
+	}
+};
+
+
+class SinusOperation : public Operation
+{
+public:
+	SinusOperation() : Operation("Sinus")
+	{
+	}
+
+	void Execute() override
+	{
+		double num;
+		std::cout << "Enter number: ";
+		std::cin >> num;
+		std::cout << "Sin(" << num << ") = " << sin(num) << std::endl;
+	}
+};
+
+class CosineOperation : public Operation
+{
+public:
+	CosineOperation() : Operation("Cosine")
+	{
+	}
+
+	void Execute() override
+	{
+		double num;
+		std::cout << "Enter number: ";
+		std::cin >> num;
+		std::cout << "Cos(" << num << ") = " << cos(num) << std::endl;
+	}
+};
+
+
+class ExponentOperation : public Operation
+{
+public:
+	ExponentOperation() : Operation("Exponent")
+	{
+	}
+
+	void Execute() override
+	{
+		double num;
+		std::cout << "Enter degree: ";
+		std::cin >> num;
+		std::cout << "e^" << num << " = " << pow(2.718, num) << std::endl;
+	}
+};