main.cpp

#include <iostream>
#include <map>
#include <string>
using namespace std;

class Database {
private:
    map<string, string> data;  // Key = Name, Value = Phone Number

    void addData() {
        string name, phone;
        cout << "Enter name: ";
        cin >> name;
        cout << "Enter phone: ";
        cin >> phone;
        data[name] = phone;
        cout << "✓ Saved: " << name << " → " << phone << "\n";
    }

    void findData() {
        string name;
        cout << "Enter name to find: ";
        cin >> name;

        if (data.count(name)) {
            cout << "Found: " << name << " → " << data[name] << "\n";
        } else {
            cout << "✗ Not found.\n";
        }
    }

public:
    void run() {
        int choice;
        do {
            cout << "\n=== SimpleDB ===\n";
            cout << "1. Add Data\n";
            cout << "2. Find Data\n";
            cout << "3. Exit\n";
            cout << "Choice: ";
            cin >> choice;

            switch (choice) {
                case 1: addData();  break;
                case 2: findData(); break;
                case 3: cout << "Goodbye!\n"; break;
                default: cout << "Invalid choice.\n";
            }
        } while (choice != 3);
    }
};

int main() {
    Database db;
    db.run();
    return 0;
}