exercise 1 - creating classes

lesson_2/exercise_1.hpp

@@ -0,0 +1,110 @@
+#ifndef EXERCISE_1_HPP_
+#define EXERCISE_1_HPP_
+
+#include <iostream>
+
+enum Gender
+{
+    GENDER_MALE,
+    GENDER_FEMALE
+};
+
+class Person
+{
+private:
+    std::string m_name;
+    int m_age;
+    Gender m_gender;
+    float m_weight;
+public:
+    Person(std::string name, int age, Gender gender, float weight) :
+    m_name(name), m_age(age), m_gender(gender), m_weight(weight) {}
+
+    void setName(std::string name = "")
+    {
+        if (name == "")
+        {
+        	std::cout << "Введите новое имя: ";
+        	std::cin >> m_name;
+        }
+        else
+            m_name = name;
+    }
+
+    void setAge(int age = 0)
+    {
+        if (age == 0)
+        {
+        	std::cout << "Введите возраст: ";
+        	std::cin >> m_age;
+        }
+        else
+            m_age = age;
+    }
+
+    void setWeight(float weight = 0.0)
+    {
+        if (weight == 0)
+        {
+        	std::cout << "Введите вес: ";
+        	std::cin >> m_weight;
+        }
+        else
+            m_weight = weight;
+    }
+
+    void printInfo() const
+    {
+    	std::cout << "Имя: " << m_name << std::endl
+            << "Возраст: " << m_age << std::endl
+            << "Пол: " << (m_gender == GENDER_MALE ? "муж" : "жен") << std::endl
+            << "Вес: " << m_weight << std::endl;
+    }
+};
+
+class Student : public Person
+{
+private:
+	static int count;
+	int m_yos; // year of study
+public:
+	Student(std::string name, int age, Gender gender, float weight, int yos) :
+		Person(name, age, gender, weight), m_yos(yos)
+	{
+		count++;
+	}
+
+	static void printCount()
+	{
+		std::cout << "Количество студентов: " << count << std::endl;
+	}
+
+	void setYearStudy(int yos = 0)
+	{
+		if (yos == 0)
+		{
+			std::cout << "Введите год обучения: ";
+			std::cin >> m_yos;
+		}
+		else
+			m_yos = yos;
+	}
+
+	void incYear()
+	{
+		m_yos++;
+	}
+
+	void printInfo() const
+	{
+		Person::printInfo();
+		std::cout << "Год обучения: " << m_yos << std::endl;
+	}
+
+	~Student()
+	{
+		count--;
+	}
+};
+
+#endif

lesson_2/main.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+#include "exercise_1.hpp"
+
+using namespace std;
+
+int Student::count = 0;
+
+int main()
+{
+	Student Alex("Олег", 20, GENDER_MALE, 75.2, 2020);
+    Alex.printInfo();
+    Student::printCount();
+
+    return 0;
+}