added new examples

6 files changed, 204 insertions, 0 deletions

diff --git a/Big4_and_inheritance/Students/GradesBook.cpp b/Big4_and_inheritance/Students/GradesBook.cpp
new file mode 100644
index 0000000..6d3de27
--- /dev/null
+++ b/Big4_and_inheritance/Students/GradesBook.cpp
@@ -0,0 +1,91 @@
+#include "GradesBook.h"
+
+
+GradesBook::GradesBook()
+{
+	capacity = 4;
+	grades = new int[capacity];
+	size = 0;
+}
+GradesBook::GradesBook(const GradesBook& other)
+{
+	std::cout << "Copy contr of GradesBook" << std::endl;
+	CopyFrom(other);
+}
+GradesBook& GradesBook::operator=(const GradesBook& other)
+{
+	if (this != &other)
+	{
+		Free();
+		CopyFrom(other);
+	}
+	return *this;
+}
+GradesBook::~GradesBook()
+{
+	Free();
+}
+
+
+void GradesBook::CopyFrom(const GradesBook& other)
+{
+	grades = new int[other.capacity];
+	for (int i = 0; i < other.size; i++)
+		grades[i] = other.grades[i];
+	capacity = other.capacity;
+	size = other.size;
+}
+void GradesBook::Free()
+{
+	delete[] grades;
+}
+
+
+bool GradesBook::isFull()
+{
+	return size == capacity;
+}
+void GradesBook::AddGrade(int grade)
+{
+	if (!isValidGrade(grade))
+		return;
+	if (isFull())
+		Resize();
+	grades[size++] = grade;
+
+}
+void GradesBook::Resize()
+{
+	int* temp = new int[capacity * 2];
+	for (int i = 0; i < size; i++)
+		temp[i] = grades[i];
+	capacity *= 2;
+	delete[] grades;
+	grades = temp;
+}
+void GradesBook::RemoveLastGrade()
+{
+	size--;
+}
+bool GradesBook::isValidGrade(int grade)
+{
+	return (grade >= 2 && grade <= 6);
+}
+int GradesBook::operator[](int index) const
+{
+	if (index < 0 || index >= size)
+		return -1;
+	return grades[index];
+}
+
+std::ostream& operator<<(std::ostream& stream, GradesBook& obj)
+{
+	for (int i = 0; i < obj.capacity; i++)
+	{
+		if (i < obj.size)
+			stream << obj.grades[i] << ' ';
+		else
+			stream << '_' << ' ';
+	}
+	return stream;
+}
\ No newline at end of file
diff --git a/Big4_and_inheritance/Students/GradesBook.h b/Big4_and_inheritance/Students/GradesBook.h
new file mode 100644
index 0000000..e63e92f
--- /dev/null
+++ b/Big4_and_inheritance/Students/GradesBook.h
@@ -0,0 +1,27 @@
+#pragma once
+#include <iostream>
+
+class GradesBook
+{
+	int* grades;
+	int size;
+	int capacity;
+	
+	bool isValidGrade(int grade);
+	void Resize();
+	void CopyFrom(const GradesBook& other);
+	void Free();
+public:
+	GradesBook();
+	GradesBook(const GradesBook& other);
+	GradesBook& operator=(const GradesBook& other);
+	~GradesBook();
+	
+	bool isFull();
+	void AddGrade(int grade);
+	void RemoveLastGrade();
+	
+	int operator[](int index) const;
+	friend std::ostream& operator<<(std::ostream& stream, GradesBook& obj);
+
+};
diff --git a/Big4_and_inheritance/Students/Student.cpp b/Big4_and_inheritance/Students/Student.cpp
new file mode 100644
index 0000000..4734529
--- /dev/null
+++ b/Big4_and_inheritance/Students/Student.cpp
@@ -0,0 +1,10 @@
+#include "Student.h"
+Student::Student(const char* name, int age, int fn): User(name,age)
+{
+	this->fn = fn;
+}
+
+void Student::ReceiveGrade(int grade)
+{
+	b.AddGrade(grade);
+}
\ No newline at end of file
diff --git a/Big4_and_inheritance/Students/Student.h b/Big4_and_inheritance/Students/Student.h
new file mode 100644
index 0000000..aafaf58
--- /dev/null
+++ b/Big4_and_inheritance/Students/Student.h
@@ -0,0 +1,15 @@
+#pragma once
+#include "User.h"
+#include "GradesBook.h"
+
+class Student : public User
+{
+public:
+	int fn;
+	GradesBook b;
+
+	Student(const char* name, int age, int fn);
+	void ReceiveGrade(int grade);
+	
+
+};
diff --git a/Big4_and_inheritance/Students/User.cpp b/Big4_and_inheritance/Students/User.cpp
new file mode 100644
index 0000000..93d34b6
--- /dev/null
+++ b/Big4_and_inheritance/Students/User.cpp
@@ -0,0 +1,43 @@
+#include "User.h"
+
+/*
+User::User(): name(nullptr),age(10)
+{
+
+}
+*/
+
+User::User(const char* name, int age)
+{
+	this->name = new char[strlen(name) + 1];
+	strcpy(this->name, name);
+	this->age = age;
+}
+User::User(const User& other)
+{
+	cout << "Copy contr of user" << endl;
+	CopyFrom(other);
+}
+User& User::operator=(const User& other)
+{
+	if (this != &other)
+	{
+		Free();
+		CopyFrom(other);
+	}
+	return *this;
+}
+User::~User()
+{
+	Free();
+}
+void User::CopyFrom(const User& other)
+{
+	name = new char[strlen(other.name) + 1];
+	strcpy(name, other.name);
+	age = other.age;
+}
+void User::Free()
+{
+	delete[] name;
+}
\ No newline at end of file
diff --git a/Big4_and_inheritance/Students/User.h b/Big4_and_inheritance/Students/User.h
new file mode 100644
index 0000000..400057b
--- /dev/null
+++ b/Big4_and_inheritance/Students/User.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <iostream>
+using namespace std;
+class User
+{
+private:
+	char* name;
+	int age;
+	void CopyFrom(const User& other);
+	void Free();
+public:
+	//User();
+	User(const char*name, int age);
+	User(const User& other);
+	User& operator=(const User& other);
+	~User();
+};