Interest Calculation [munie,azam,haniff]

captain_LJ Thu Dec 10, 2009 9:16 pm

Code:: #include<iostream> #include<string> #include<math.h> using namespace std; //base class.. class interest { public: int x, y, z; public: interest(); //constructor.. double rate, loan; int time, user; void nilai(double x, int y, double z); //declaration inline.. virtual void message(void) { cout <<"\n *******************************\n"; cout <<" * THE INTEREST CALCULATIONS *\n"; cout <<" *******************************\n\n"; cout <<" SILA PILIH JENIS BAYARAN:\n"; cout <<"\n 1.Tahunan\n 2.Bulanan\n 3.Harian"; cout <<"\n\n Masukkan no pilihan anda: "; cin >>user; cout <<" ********************************"; } }; //implement interest constructor.. interest::interest() { x = y = z = 0; } //inline statements.. inline void interest::nilai(double x, int y, double z) { loan = x; time = y; rate = z; } //derived class.. class calInterest:public interest { public: double kira(int user) { if (user==1) return (loan * rate * time)/100; else if (user==2) return (loan * rate * time /12)/100; else if (user==3) return (loan * rate * time /365)/100; } double kiraCom(int user) { return loan* pow(1 + rate/100,time); } void tunjuklah() { double x, z; cout <<"\n\n Masukkan jumlah pinjaman:RM"; cin >> x; cout << "\n Kadar peratusan(%): "; cin >> z; cout << "\n Tempoh bayaran: "; cin >> y; nilai(x, y, z); cout <<"\n ********************************"; cout <<"\n Interest ialah RM "<<kira(user); cout <<"\n ********************************"; cout <<"\n Compound ialah RM "<<kiraCom(user); cout <<"\n ********************************\n\n"; } }; int main() { string d; string t = "tidak"; //do statements.. do { calInterest *tajuk; //declare pointed object tajuk=new calInterest; //create memory for class calInterest tajuk->message(); //object access to message() tajuk->tunjuklah(); //object access to display() delete tajuk; //delete memory created on tajuk cout <<" Mau cuba lagi!!!!!.....\n"; cout <<" ****************************************************\n"; cout <<" Taip 'ya' untuk teruskan atau 'tidak' untuk berhenti: "; cin >> d; cout <<endl<<endl; } //while statements.. while (d!= t); //if true the program will be return..if not the program will close.. { cout <<" Terima kasih kerana mencubanya!!....\n\n"; } system("pause"); return 0; }