MugANDGlass

can anyone help me? i got problem count the monthly installment. //class class vehicle { public: char model[20], color[20], brand[20]; float price, deposit, rate, monthly_installment, newprice; int term; public: void calculate_installment(); }; class car:public vehicle { private: float installment, newprice; public: void calculate_installment(); }; //main program #include <iostream> #include <string.h> …

[CODE]void search() { char id[12]; node *p = head; system("cls"); { cout<<"Search ID: "; cin>>id; } while ((p!=NULL) && (strcmp(id,p->id)!=0)) { p = p->next; } if(p==NULL) { cout<<"No such ID in our list"<<endl; delete p; } else cout<<"We have this ID in our list"<<endl; } void remove() { char id[12]; …

[CODE]void Load() { book *newptr,*p,*q; string id,title,author,year,price,date; ifstream file1; head = NULL; file1.open("books.txt"); if (file1.fail()) { cout << "Error opening file.\n"; exit(1); } while (!file1.eof()) { newptr = new book; // getline(file1,id); getline(file1,title); getline(file1,author); getline(file1,year); getline(file1,price); getline(file1,date); //copy values from the file to the newptr newptr->id.assign (id) ; newptr->title.assign (title) …

[CODE]void Load() { book *newptr,*p,*q; char id [12]; string title; string author; int year; float price; ifstream file1; head = NULL; file1.open("books.txt"); if (file1.fail()) { cout << "Error opening file.\n"; exit(1); } while (!file1.eof()) { newptr = new book; // file1.getline(id,12); getline(file1,title); getline(file1,author); getline(file1,year); file1.getline(price); //copy values from the file …

[CODE]void insert() { counter++; char id [12]; string title; string author; int year; char num_id[12]; borrow *newptr,*p,*q;//declare p = head; q = NULL; //counter++; newptr = new borrow;//declare cout<<"\nEnter your ID: "; cin>>newptr->id; cout<<"\nTitle of the book: "; cin>>newptr->title; getline (cin, newptr->title); cout<<"\nAuthor: "; cin>>newptr->author; getline (cin, newptr->author); cout<<"\nYear: "; …