tolong c++

**peaceout** · 29-12-12, 04:33 PM

minta tolong otai2 syok semua. saya ada try buat satu c++ programming ni. sample output seperti di bawah :

masalah yang saya hadapi sekarang ialah, saya tak berapa nak tahu la macam mana nak dapat kan GRAND TOTAL tu, ada siapa-siapa yang baik hati lagi permurah boleh tolong saya x? ni coding yang saya dah pun buat:

Code:

#include <iostream>
#include <string>

using namespace std;

class contributor
{
      protected:
              string name, cname;
              float payment, paper, metal, plastic;
      public:
            contributor()
            {
                     cout << "";
                     //cout << "                     = RECYCLE WEEK =                     " << endl;
                     //cout << "==========================================================" << endl;     
            }
            
};

class recycle : public contributor
{
      private:
              float total;
              
      public:
             recycle() : total(0) {}
             
             void getname()
             {
                  cout << "\nEnter name         : ";
                  fflush(stdin);
                  getline(cin, name);
                 
                  cout << "Enter company name : ";
                  getline(cin, cname);
             }
            
            void getkilo()
            {
                 cout << "\nEnter " << name << " contributions (kilo) under category :" << endl;
                  
                 cout << "        Paper    : ";
                 cin >> paper;
                  
                 cout << "        Metal    : ";
                 cin >> metal;
                  
                 cout << "        Plastics : ";
                 cin >> plastic;
            } 
             
            void calc()
            {
                 payment = (paper * 0.20) + (metal * 0.50) + (plastic * 0.30); 
            }
            
            float calc_grandtotal(float tot)
            {
                  total = tot;
                  
                  return total = total + payment;
            }
             
            void display()
            {
                 cout << name << "     " << cname  << "     " << paper << "     " << metal <<  "        " << plastic << "           " << payment  << endl;
            }
            
            void display_grandtotal()
            {
                 cout << "\nGRAND TOTAL: RM " << total << endl;     
            }
};

class recycleweek : public recycle
{
      public:
            recycleweek()
            {
                     cout << "==============================================================" << endl;
                     cout << "                     = RECYCLE WEEK =                         " << endl;
                     cout << "==============================================================" << endl;
            }
};

class test : public recycle
{
      public:
             test()
             {
                   cout << "==============================================================" << endl;
                   cout << "=                              RECEIPT                           =" << endl;
                   cout << "= Name       Company     Paper   Metal    Plastics   Payment(RM) =" << endl;
                   cout << "==============================================================" << endl;
             }
};

int main()
{
    float total;
    
    /*int no;
    
    cout << "How many contributor(s)? ";
    cin >> no;
        
    contributor *c;
    c = new contributor[no];
    
    for(int i = 0; i <= no - 1; i++)
    {
            (*(c+ +i)).getname();
            (*(c+ +i)).getkilo();        
    }
    
    delete [] c;*/
    recycleweek c;
    
    int no;
    
    cout << "How many contributor(s)? ";
    cin >> no;
    
    contributor cont;
    
    recycle *r;
    r = new recycle[no];
    
    for(int i = 0; i <= no - 1; i++)
    {
            cout << "\nContributor #" << i+1 << endl;
            cout << "--------------" << endl;
            
            (*(r+ +i)).getname();
            (*(r+ +i)).getkilo();
            (*(r+ +i)).calc();
            
            //(*(r+ +i)).calc_grandtotal();            
    }
    
    test t;
    
    for(int j = 0; j <= no - 1; j++)
    {
            (*(r+ +j)).display();
            
            (*(r+ +j)).calc_grandtotal(total);
    }
    
    (*(r)).display_grandtotal();
    
    
    
    
    
    //recycle tot;
    
    //tot.display_grandtotal();
    
    delete [] r;
                 
    system("PAUSE");
    return 0;
}

**peaceout** · 29-12-12, 05:21 PM

alamak saya cuba masuk kan code saya, tapi asyik tak jadi je, kepada siapa-siapa yang sudi menolong, nanti saya akan pm kn apa yang dah pun saya buat. terima kasih.