Question

#include <iostream>
#include <string>
#include <iomanip>
#include <cstdlib>
#include "Contact.h"

using namespace std;
class Contact
{
public:
Contact(string init_name = "", string init_phone = "000-000-0000");
void setName(string name);
void setPhone(string phone);
string getName()const;
string getPhone()const;
friend ostream& operator << (ostream& os, const Contact& c);
friend bool operator == (const Contact& c1, const Contact& c2);
friend bool operator != (const Contact& c1, const Contact& c2);
private:
string name, phone;
};
Contact::Contact(string init_name, string init_phone)
{
name = init_name;
phone = init_phone;
}
void Contact::setName(string name)
{
this->name = name;
}
void Contact::setPhone(string phone)
{
this->phone = phone;
}
string Contact::getName() const
{
return name;
}
string Contact::getPhone() const
{
return phone;
}
ostream& operator << (ostream& os, const Contact& c)
{
os << "Name: " << c.name << endl;
os << "Phone: " << c.phone << endl;
return os;
}
bool operator == (const Contact& c1, const Contact& c2)
{
return c1.name == c2.name;
}
bool operator != (const Contact& c1, const Contact& c2)
{
return c1.name != c2.name;
}

int main()
{

}
==================================================================================

sample run

Name: John Casey
Phone: 831-234-2323

Name: Amy Doe
Phone: 831-534-2890

Name: Julie Anderson
Phone: 731-234-6543

Name: Nebula Walker
Phone: 831-565-1010

Name: Paul Rod
Phone: 831-654-0090

Display the contacts from first to last and then in reverse order. Ask the user for a full name and display the Contact information for that person.

Sample Driver Program Run

List of contacts:
Name: John Casey
Phone: 831-234-2323

Name: Amy Doe
Phone: 831-534-2890

Name: Julie Anderson
Phone: 731-234-6543

Name: Nebula Walker
Phone: 831-565-1010

Name: Paul Rod
Phone: 831-654-0090

Contacts printed backwards:
Name: Paul Rod
Phone: 831-654-0090

Name: Nebula Walker
Phone: 831-565-1010

Name: Julie Anderson
Phone: 731-234-6543

Name: Amy Doe
Phone: 831-534-2890

Name: John Casey
Phone: 831-234-2323

Enter a full name:
Amy Doe

Their contact info is:
Name: Amy Doe
Phone: 831-534-2890

Answer 1

Program Code [C++]

#include <iostream>
#include <string>
#include <iomanip>
#include <cstdlib>

using namespace std;
class Contact
{
    
    public:
    Contact(string init_name = "", string init_phone = "000-000-0000");
        void setName(string name);
        void setPhone(string phone);
        string getName()const;
        string getPhone()const;
        friend ostream& operator << (ostream& os, const Contact& c);
        friend bool operator == (const Contact& c1, const Contact& c2);
        friend bool operator != (const Contact& c1, const Contact& c2);
    private:
        string name, phone;
};

Contact::Contact(string init_name, string init_phone)
{
    name = init_name;
    phone = init_phone;
}
void Contact::setName(string name)
{
    this->name = name;
}
void Contact::setPhone(string phone)
{
    this->phone = phone;
}
string Contact::getName() const
{
    return name;
}
string Contact::getPhone() const
{
    return phone;
}
ostream& operator << (ostream& os, const Contact& c)
{
    os << "Name: " << c.name << endl;
    os << "Phone: " << c.phone << endl;
    return os;
}
bool operator == (const Contact& c1, const Contact& c2)
{
    return c1.name == c2.name;
}
bool operator != (const Contact& c1, const Contact& c2)
{
    return c1.name != c2.name;
}

int main() {
    
    // Creating an array of size 5 of Contacts
    
    Contact contacts[5];
    
    // Asking user for info as given in sample run
    
    for (int i=0; i<5; i++) {
        
        string name, phone;
        cout << "Name: ";
        getline(cin >> ws, name);
        cout << "Phone: ";
        getline(cin >> ws, phone);
        
        cout << endl;
        
        contacts[i] = Contact(name, phone);
    }
    
    // Now Showing list of contacts
    
    cout << "List of contacts:" << endl;
    
    for (int i=0; i<5; i++)
        cout << contacts[i] << endl;
        
    // Now printing list in reverse order
    
    cout << "Contacts printed backwards: " << endl;
    
    for (int i=4; i>=0; i--)
        cout << contacts[i] << endl;
        
    // Ask user for a name and displays its information
    
    string n;
    
    cout << "Enter a full name: " << endl;
    getline(cin >> ws, n);
    
    // Searchinng for name in array and if found, printing info
    
    int index = -1;
    
    for (int i=0; i<5; i++) {
        
        if(contacts[i].getName() == n)
            index = i;
    }

    if(index == -1)
        cout << "Information not found";
    else {
        cout << "Their contact info is:" << endl;
        cout << contacts[index] << endl;
    }
    
    return 0;
}

Sample Output:-

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