diff --git a/LValueReference/Session1-1.cpp b/LValueReference/Session1-1.cpp
new file mode 100644
index 0000000..62dd089
--- /dev/null
+++ b/LValueReference/Session1-1.cpp
@@ -0,0 +1,35 @@
+#include <iostream>
+
+class Test
+{
+private:
+	int _a;
+	int& _b = _a;
+
+public:
+	Test()
+	{
+		_a = 5;
+		std::cout << "Normal constructor" << std::endl;
+	}
+
+	void printValue()
+	{
+		_b = 12;
+		std::cout << _a << "---" << _b << std::endl;
+	}
+
+	void printAddress()
+	{
+		std::cout << &_a << "---" << &_b << std::endl;
+	}
+};
+
+int main()
+{
+	Test t;
+	t.printValue();
+	t.printAddress();
+
+	return 0;
+}
diff --git a/LValueReference/Session1-2.cpp b/LValueReference/Session1-2.cpp
new file mode 100644
index 0000000..40f0e27
--- /dev/null
+++ b/LValueReference/Session1-2.cpp
@@ -0,0 +1,46 @@
+#include <iostream>
+
+class Test
+{
+private:
+	int _a;
+	int& _b = _a;
+
+public:
+	Test()
+	{
+		_a = 5;
+		std::cout << "Normal constructor" << std::endl;
+	}
+
+	Test(const Test& rhs)
+	{
+		_a = rhs._a;
+		std::cout << "copy constructor" << std::endl;
+	}
+
+	void printValue()
+	{
+		std::cout << _a << "---" << std::endl;
+	}
+
+	void setA (int a)
+	{
+		_a = a;
+	}
+};
+
+void temp(Test t)
+{
+	t.setA(10);
+	t.printValue();
+}
+
+int main()
+{
+	Test t;
+	temp(t);
+	t.printValue();
+
+	return 0;
+}
diff --git a/LValueReference/Session1-3.cpp b/LValueReference/Session1-3.cpp
new file mode 100644
index 0000000..5a3d045
--- /dev/null
+++ b/LValueReference/Session1-3.cpp
@@ -0,0 +1,46 @@
+#include <iostream>
+
+class Test
+{
+private:
+	int _a;
+	int& _b = _a;
+
+public:
+	Test()
+	{
+		_a = 5;
+		std::cout << "Normal constructor" << std::endl;
+	}
+
+	Test(const Test& rhs)
+	{
+		_a = rhs._a;
+		std::cout << "copy constructor" << std::endl;
+	}
+
+	void printValue()
+	{
+		std::cout << _a << "---" << std::endl;
+	}
+
+	void setA (int a)
+	{
+		_a = a;
+	}
+};
+
+void temp(Test& t)
+{
+	t.setA(10);
+	t.printValue();
+}
+
+int main()
+{
+	Test t;
+	temp(t);
+	t.printValue();
+
+	return 0;
+}
diff --git a/LValueReference/Session1-4.cpp b/LValueReference/Session1-4.cpp
new file mode 100644
index 0000000..b4b5ff6
--- /dev/null
+++ b/LValueReference/Session1-4.cpp
@@ -0,0 +1,45 @@
+#include <iostream>
+
+class Test
+{
+private:
+	int _a;
+	int& _b = _a;
+
+public:
+	Test()
+	{
+		_a = 5;
+		std::cout << "Normal constructor" << std::endl;
+	}
+
+	Test(const Test& rhs)
+	{
+		_a = rhs._a;
+		std::cout << "copy constructor" << std::endl;
+	}
+
+	void printValue() const
+	{
+		std::cout << _a << "---" << std::endl;
+	}
+
+	void setA (int a)
+	{
+		_a = a;
+	}
+};
+
+void temp(const Test& t)
+{
+	t.printValue();
+}
+
+int main()
+{
+	Test t;
+	temp(t);
+	t.printValue();
+
+	return 0;
+}
diff --git a/LvalueRefrence/Session1-1.cpp b/LvalueRefrence/Session1-1.cpp
deleted file mode 100644
index c4bae3a..0000000
--- a/LvalueRefrence/Session1-1.cpp
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <iostream>
-using namespace std;
-class Test
-{
-
-private:
-int _a;
-int& _b=_a;
-
-
-public:
-
-Test()
-{
-  _a = 5;
-  cout << "Normal constructor"<< endl;
-}
-
-void printValue()
-{
-  _b=12;
- cout << _a << "---" << _b<< endl;
-}
-void printAddress()
-{
-cout << &_a << "---" << &_b<<  endl;
-}
-
-};
-int main()
-{
-  Test t;
-  t.printValue();
-  t.printAddress();
-
-  return 0;
-}
\ No newline at end of file
diff --git a/LvalueRefrence/Session1-2.cpp b/LvalueRefrence/Session1-2.cpp
deleted file mode 100644
index bfea1b3..0000000
--- a/LvalueRefrence/Session1-2.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-#include <iostream>
-using namespace std;
-class Test
-{
-
-private:
-int _a;
-int& _b=_a;
-
-
-public:
-
-Test()
-{
-  _a = 5;
-  cout << "Normal constructor"<< endl;
-}
-Test(const Test& rhs)
-{
-   _a = rhs._a;
- cout << "copy constructor"<< endl;
-}
-void printValue()
-{
- 
- cout << _a << "---" <<  endl;
-}
-void setA (int a)
-{
-  _a =a;
-}
-};
-void temp(Test t)
-{
- t.setA(10);
- t.printValue();
-}
-int main()
-{
-  Test t;
-  temp(t);
-  t.printValue();
- 
-
-  return 0;
-}
\ No newline at end of file
diff --git a/LvalueRefrence/Session1-3.cpp b/LvalueRefrence/Session1-3.cpp
deleted file mode 100644
index a0c9651..0000000
--- a/LvalueRefrence/Session1-3.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-#include <iostream>
-using namespace std;
-class Test
-{
-
-private:
-int _a;
-int& _b=_a;
-
-
-public:
-
-Test()
-{
-  _a = 5;
-  cout << "Normal constructor"<< endl;
-}
-Test(const Test& rhs)
-{
-   _a = rhs._a;
- cout << "copy constructor"<< endl;
-}
-void printValue()
-{
- 
- cout << _a << "---" <<  endl;
-}
-void setA (int a)
-{
-  _a =a;
-}
-};
-void temp(Test& t)
-{
- t.setA(10);
- t.printValue();
-}
-int main()
-{
-  Test t;
-  temp(t);
-  t.printValue();
- 
-
-  return 0;
-}
\ No newline at end of file
diff --git a/LvalueRefrence/Session1-4.cpp b/LvalueRefrence/Session1-4.cpp
deleted file mode 100644
index 2f7923b..0000000
--- a/LvalueRefrence/Session1-4.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-#include <iostream>
-using namespace std;
-class Test
-{
-
-private:
-int _a;
-int& _b=_a;
-
-
-public:
-
-Test()
-{
-  _a = 5;
-  cout << "Normal constructor"<< endl;
-}
-Test(const Test& rhs)
-{
-   _a = rhs._a;
- cout << "copy constructor"<< endl;
-}
-void printValue() const
-{
- 
- cout << _a << "---" <<  endl;
-}
-void setA (int a)
-{
-  _a =a;
-}
-};
-void temp(const Test& t)
-{
- 
- t.printValue();
-}
-int main()
-{
-  Test t;
-  temp(t);
-  t.printValue();
- 
-
-  return 0;
-}
\ No newline at end of file