feat: adding contact management system

Src/Contact_Managment_System/contactmanagement.cpp

@@ -0,0 +1,151 @@
+#include <iostream>
+#include <fstream>
+#include <iomanip>
+#include <string>
+using namespace std;
+class ContactManager {
+private:
+    string phoneNo, name, address, description;
+    fstream file;
+
+public:
+    void menu();
+    void addContact();
+    void showAll();
+    void searchContact();
+};
+// Function to display menu 
+void ContactManager::menu() {
+    char choice;
+    do {
+        system("cls");
+        cout << "   # CONTACT MANAGEMENT APP   \n";
+        cout << "________________________________\n";
+        cout << "1 → Add Contact\n";
+        cout << "2 → Show All Contacts\n";
+        cout << "3 → Search Contact\n";
+        cout << "0 → Exit\n";
+        cout << "________________________________\n";
+        cout << "Enter your choice: ";
+        cin >> choice;
+        cin.ignore();
+
+        switch (choice) {
+        case '1':
+            addContact();
+            break;
+        case '2':
+            showAll();
+            break;
+        case '3':
+            searchContact();
+            break;
+        case '0':
+            cout << "\nExiting the program... Goodbye!\n";
+            break;
+        default:
+            cout << "\nInvalid choice! Please try again.\n";
+        }
+
+        if (choice != '0') {
+            cout << "\nPress Enter to continue...";
+            cin.get();
+        }
+
+    } while (choice != '0');
+}
+// Function to add new contact
+void ContactManager::addContact() {
+    cout << "\nEnter Phone Number: ";
+    getline(cin, phoneNo);
+    cout << "Enter Name: ";
+    getline(cin, name);
+    cout << "Enter Address: ";
+    getline(cin, address);
+    cout << "Enter Description: ";
+    getline(cin, description);
+
+    file.open("contacts.csv", ios::out | ios::app);
+    if (!file){
+        cerr<<"Error opening file for writing!\n";
+        return;
+    }
+
+    file << phoneNo << "," << name << "," << address << "," << description << "\n";
+    file.close();
+
+    cout << "\nContact added successfully!";
+}
+// Function to display all contacts
+void ContactManager::showAll() {
+    file.open("contacts.csv", ios::in);
+    if (!file) {
+        cerr << "Error opening file! No data found.\n";
+        return;
+    }
+
+    cout << "\n    CONTACT LIST      \n";
+    cout << left << setw(15) << "Phone No"
+         << setw(20) << "Name"
+         << setw(25) << "Address"
+         << setw(30) << "Description" << endl;
+    cout << "________________________________\n";
+
+    bool found = false;
+    while(getline(file, phoneNo, ',')){
+        getline(file, name, ',');
+        getline(file, address, ',');
+        getline(file, description, '\n');
+
+        cout << left << setw(15) << phoneNo
+             << setw(20) << name
+             << setw(25) << address
+             << setw(30) << description << endl;
+
+        found = true;
+    }
+    if(!found)
+        cout << "\nNo contacts found.\n";
+
+    file.close();
+}
+// Function to search a contact by phone number
+void ContactManager::searchContact() {
+    cout << "\nEnter Phone Number to Search: ";
+    string searchPhone;
+    getline(cin, searchPhone);
+
+    file.open("contacts.csv", ios::in);
+    if (!file) {
+        cerr << "Error opening file! No data found.\n";
+        return;
+    }
+
+    bool found = false;
+    while (getline(file, phoneNo, ',')) {
+        getline(file, name, ',');
+        getline(file, address, ',');
+        getline(file, description, '\n');
+
+        if (phoneNo == searchPhone) {
+            cout << "\n Contact Found!\n";
+            cout << "Phone Number: " << phoneNo << endl;
+            cout << "Name: " << name << endl;
+            cout << "Address: " << address << endl;
+            cout << "Description: " << description << endl;
+            found = true;
+            break;
+        }
+    }
+
+    if (!found)
+        cout << "\n No contact found with that phone number.\n";
+
+    file.close();
+}
+
+int main() {
+    ContactManager app;
+    app.menu();
+    return 0;
+}

Src/Contact_Managment_System/contacts.csv

@@ -0,0 +1 @@
+54545454,indr,jodhpur,hi