diff --git a/Main.cpp b/Main.cpp
index a9a51a9..297c258 100644
--- a/Main.cpp
+++ b/Main.cpp
@@ -1,3 +1,4 @@
+#include <fstream>
 #include <iostream>
 #include <vector>
 
@@ -99,17 +100,43 @@ typedef struct contacts{
 } Kontaktdaten;
 
 
-void addContact(Kontaktdaten* person, std::vector<Kontaktdaten*> &Telefonbuch) {
-	Telefonbuch.push_back(person);
+void addContact(Kontaktdaten* person, std::vector<Kontaktdaten*> *Telefonbuch) {
+	Telefonbuch->push_back(person);
+	// std::vector<Kontaktdaten *> buch = *Telefonbuch;
+	// buch.push_back(person);
 }
 
-void printAllContacts(std::vector<Kontaktdaten*> Telefonbuch) {
-	for (Kontaktdaten * personpointer: Telefonbuch) {
+void printAllContacts(std::vector<Kontaktdaten*> *Telefonbuch) {
+	for (Kontaktdaten * personpointer: *Telefonbuch) {
 		Kontaktdaten person = *personpointer;
 		std::cout << person.firstName << " " << person.lastName << " " << person.number << std::endl;
 	}
 }
 
+void saveAllContacts(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName) {
+	std::ofstream outfile;
+	outfile.open(*fileName);
+
+	for (Kontaktdaten * personpointer: *Telefonbuch) {
+		Kontaktdaten person = *personpointer;
+		outfile << person.firstName << std::endl << person.lastName << std::endl << person.number << std::endl;
+	}
+
+	outfile.close();
+}
+
+void readContactsFromFile(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName) {
+	std::ifstream infile;
+	infile.open(*fileName);
+	Kontaktdaten person;
+	infile >> person.firstName >> person.lastName;
+	infile >> person.number;
+
+
+	infile.close();
+	addContact(&person, Telefonbuch);
+}
+
 /*
 Kontaktdaten * createContact(std::string firstName, std::string lastName, int number) {
 	Kontaktdaten person = new Kontaktdaten;
@@ -123,11 +150,12 @@ Kontaktdaten * createContact(std::string firstName, std::string lastName, int nu
 */
 
 void TelefonbuchMain() {
+	std::string fileName = "../IO-Files/Telefonbuch.txt";
 	std::vector<Kontaktdaten*> Telefonbuch;
 
-	Kontaktdaten * Robin = new Kontaktdaten;
-	Kontaktdaten * Saxo = new Kontaktdaten;
-	Kontaktdaten * Jesus = new Kontaktdaten;
+	auto * Robin = new Kontaktdaten;
+	auto * Saxo = new Kontaktdaten;
+	auto * Jesus = new Kontaktdaten;
 
 	Robin->number = 123456;
 	Robin->firstName = "Robin";
@@ -141,15 +169,16 @@ void TelefonbuchMain() {
 	Jesus->firstName = "Jesus";
 	Jesus->lastName = "Nazarett";
 
-	addContact(Robin, Telefonbuch);
-	addContact(Saxo, Telefonbuch);
-	addContact(Jesus, Telefonbuch);
+	addContact(Robin, &Telefonbuch);
+	addContact(Saxo, &Telefonbuch);
+	addContact(Jesus, &Telefonbuch);
 
-	printAllContacts(Telefonbuch);
+	printAllContacts(&Telefonbuch);
+	saveAllContacts(&Telefonbuch, &fileName);
 
-	for (Kontaktdaten * personpointer: Telefonbuch) {
-		delete personpointer;
-	}
+	delete Robin;
+	delete Saxo;
+	delete Jesus;
 }
 
 #pragma endregion