admin update price

void Admin::Update_phone_price()
{
    int choice;
    while(true)
    {
        cout<<"Enter Which Type of Phone U want to update the Price"<<endl;
        cout<<"1.Featured phone"<<endl;
        cout<<"2.Midrange phone"<<endl;
        cout<<"3.Flagship phone"<<endl;
        cout<<"4.Apple Phone"<<endl;
        cout<<"0.Exit"<<endl;
        cin>>choice;
        if(choice==1)
        {
        fstream fin,fout;
        fin.open("Featuredphone.csv",ios::in);
        fout.open("New1.csv",ios::out | ios::app);
        vector<string>row;
    string line,word,temp;
    int cnt=0;
    cout<<"Enter the Name of Phone U want to Update the Price"<<endl;
    string name;
    cin>>name;
    while(getline(fin,line))
    {
        row.clear();
       // getline(fin,line);
        stringstream s(line);
        while(getline(s,word,','))
        {
            row.push_back(word);
        }
        if(name==row[0]){
            cnt=1;
            cout<<"Enter the Updated Price"<<endl;
            string newprice;
            cin>>newprice;
            fout<<row[0]<<","<<row[1]<<","<<newprice<<endl;
        //break;9
        }
        else
        {
            fout<<row[0]<<","<<row[1]<<","<<row[2]<<endl;
        }
    }
    fin.close();
    fout.close();
    remove("Featuredphone.csv");
    rename("file2.csv","Featuredphone.csv");
     }
     if(choice==2)
     {
                 fstream fin,fout;
        fin.open("Midrangedphone.csv",ios::in);
        fout.open("New1.csv",ios::out | ios::app);
        vector<string>row;
    string line,word,temp;
    int cnt=0;
    cout<<"Enter the Name of Phone U want to Update the Price"<<endl;
    string name;
    cin>>name;
    while(getline(fin,line))
    {
        row.clear();
       // getline(fin,line);
        stringstream s(line);
        while(getline(s,word,','))
        {
            row.push_back(word);
        }
        if(name==row[0]){
            cnt=1;
            cout<<"Enter the Updated Price"<<endl;
            string newprice;
            cin>>newprice;
            fout<<row[0]<<","<<newprice;
            for(int i=2;i<row.size();i++)
            {
                fout<<","<<row[i];
            }
            fout<<endl;
        //break;9
        }
        else
        {
            for(int i=0;i<row.size();i++)
            {
                fout<<row[i]<<",";
            }
        }
    }
    fin.close();
    fout.close();
    remove("Midrangedphone.csv");
    rename("New1.csv","Midrangedphone.csv");
     }
     else if(choice==3)
     {
         cout<<"Enter the Name of Phone U want to Update the Price"<<endl;
    string name;
    cin>>name;
          fstream fin,fout;
        fin.open("Flagship_phone.csv",ios::in);
        fout.open("New1.csv",ios::out | ios::app);
        vector<string>row;
    string line,word,temp;
    int cnt=0;
    while(getline(fin,line))
    {
        row.clear();
       // getline(fin,line);
        stringstream s(line);
        while(getline(s,word,','))
        {
            row.push_back(word);
        }
        if(name==row[0]){
            cnt=1;
            cout<<"Enter the Updated Price"<<endl;
            string newprice;
            cin>>newprice;
            fout<<row[0]<<","<<newprice;
            for(int i=2;i<row.size();i++)
            {
                fout<<","<<row[i];
            }
            fout<<endl;
        //break;9
        }
        else
        {
            for(int i=0;i<row.size();i++)
            {
                fout<<row[i]<<",";
            }
        }
    }
    fin.close();
    fout.close();
    remove("Flagship_phone.csv");
    rename("New1.csv","Flagship_phone.csv");
     }
     else if(choice==4)
     {
         cout<<"Enter the Name of Phone U want to Update the Price"<<endl;
    string name;
    cin>>name;
                   fstream fin,fout;
        fin.open("Apple_phone.csv",ios::in);
        fout.open("New1.csv",ios::out | ios::app);
        vector<string>row;
    string line,word,temp;
    int cnt=0;
    while(getline(fin,line))
    {
        row.clear();
       // getline(fin,line);
        stringstream s(line);
        while(getline(s,word,','))
        {
            row.push_back(word);
        }
        if(name==row[0]){
            cnt=1;
            cout<<"Enter the Updated Price"<<endl;
            string newprice;
            cin>>newprice;
            fout<<row[0]<<","<<newprice;
            for(int i=2;i<row.size();i++)
            {
                fout<<","<<row[i];
            }
            fout<<endl;
        //break;9
        }
        else
        {
            for(int i=0;i<row.size();i++)
            {
                fout<<row[i]<<",";
            }
        }
    }
    fin.close();
    fout.close();
    remove("Flagship_phone.csv");
    rename("New1.csv","Apple_phone.csv");
     }
     else if(choice==0)
     {
         break;
     }
     else
     {
         continue;
     }
}
}