(C++) how can I create a fucntion to display this ?

Question

1.00/5 (1 vote)

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I have done the front part and now I want to creat a function in the main.cpp which takes an instance of Customer as a parameter. All this function should do is print out the name of the customer if (and only if) they are booked.

I am lost, because my book status is in main.cpp how can i retrive the book status ?

Example output:

Confirmed booking:
Tony Stark is booked
Peter Parker is booked
Wanda Maximoff is booked
Bruce Banner is book

What I have tried:

#include <iostream>
#include "customer.h"
using namespace std;

void ConfirmBooking(Customer n,Customer a,Customer s,Customer c);
void show(Customer n);

int main() {

	Customer myObj;
		
	string name;
	int age;
	bool student;
	char id;
	int i;
	

	for(i=0;i<2;i++){
 	
		myObj.info();
		myObj.isStudent();
		myObj.isChild();
	
		ConfirmBooking(myObj,myObj,myObj,myObj);
	}
	
		show(myObj);

//		Customer myObj;
//		myObj.show(n,a,s);
}

void ConfirmBooking(Customer n ,Customer a,Customer s,Customer c){
			
			string name = n.name;
			int age = a.age;
			bool isStudent = s.student;
			bool isChild = c.child;
			double ticketPrice,mealPrice;
			char confirm ;
			bool book;
			

			//children
			if(isChild == true && isStudent == true){
				
				ticketPrice = 50.0 / 100.0 * 56; ;
				mealPrice = 50.0 / 100.0 * 30;
				
			//student	
			}else if(isStudent == true){
			
				ticketPrice = 50.0 / 100.0 * 56;
				mealPrice = 90.0 / 100.0 * 30;
				
			}else if(isChild == true){
			
				ticketPrice = 50.0 / 100.0 * 56;
				mealPrice = 50.0 / 100.0 * 30;
				
			}else{
				
				ticketPrice = 80.0 / 100.0 * 56;
				mealPrice = 90.0 / 100.0 * 30;
				
			}
			
			cout << name << " " ;
			cout << "Ticket Price:RM" << ticketPrice << endl;
			cout << "Meal Price:RM" << mealPrice << endl;
			cout << "Total Price:RM" << ticketPrice + mealPrice << endl;
			cout << "Confirm Booking for " << name << "(y/n)";
			cin >> confirm;
			
			if(confirm == 'y'){
				book = true;
				cout << "Booked\n";
								
			}else if(confirm == 'n'){
				book = false;
				cout << "Not Booked\n";
				
			}else{
				book = false;
			} 
			
			cout << "\n";
		};

Header file

#include <iostream>
using namespace std;

class Customer {
	
	public:
		string name;
		int age;
		bool student;
		bool child ;
		char id;

	public:

		Show(string n, int a, bool s, bool c){ 
		    name = n;
		    age = a;
		    student = s;
		    child = c;
		}

	  
	void setName(string n) {
		  name = n;
		}

		string getName() {
		  return name;
		}

		void setAge(int a) {
		  age = a;
		}

		int getAge() {
		  return age;
		}

		void setStudent(bool = true) {
		  student = true;
		}

		bool getStudent() {
		  return student;
		}
		
	/*	void setChild(bool = true) {
		  child = true;
		}

		bool getChild() {
		  return child;
		}  */
		
	void info(){
		cout << "Please enter name:";
		getline(cin >> ws, name);
			
		cout << "Please enter age:";
		cin >> age;
		
		cout << "Is student ID present?(y/n)";
		cin >> id;
		cout << endl; 
		} 
		
	void isStudent(){
			
		if (id == 'y') {

		student = true;
		}
		else if (id == 'n') {
		
			student = false;
		}
		else {
			cout << "Please enter y or n!" << endl;
		}
	}
		
	void isChild(){
			
	if(age >= 5 && age <= 16){
			child = true;
		}else{
			child = false;
			}
		}	
	};

Posted 18-Oct-21 6:00am

Choi Yoojung

Updated 18-Oct-21 20:57pm

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Comments

Richard MacCutchan 18-Oct-21 12:21pm

You have coded a constructor for your class but you called it Show instead of Customer.

KarstenK 18-Oct-21 14:00pm

the ConfirmBooking belongs in the Customer class. Some poor design which leads to your bug. Think about it ;-)

merano99 18-Oct-21 17:22pm

We discussed that yesterday. Havent you seen that?

https://www.codeproject.com/Questions/5315365/This-is-a-Cplusplus-ticket-booking-program-can-any

4 solutions

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merano99 · Answer 1 · 2021-10-18T11:26:00

Solution 2

We discussed that yesterday. Havent you seen that?

https://www.codeproject.com/Questions/5315365/This-is-a-Cplusplus-ticket-booking-program-can-any

And it would be polite to say thank you and rate any helpful hints.

Posted 18-Oct-21 11:26am

merano99

Comments

Choi Yoojung 19-Oct-21 0:24am

ya but im not able to edit and reply that post not sure why, thats why i create the new one, really thankyou for the help appreciate it !

OriginalGriff · Answer 2 · 2021-10-18T06:10:00

The main problem is that you are only creating one instance of a Customer:

Customer myObj;

So every time you go around the loop, you overwrite the previous values and end up with just the one set of Customer information.

You need to create different instances - using the new keyword - and store all the instances in a collection of some sort. Since I have no idea where you are in your course, I can't say "use this", so go back to your course notes and re-read them carefully, paying careful attention when new is discussed.

Rick York · Answer 3 · 2021-10-18T15:53:00

Solution 3

You have a function call ConfirmBooking. It is a simple matter to make that function return a boolean variable to indicate the result. You can save that value and do other things with it later. You might want to add a member variable to the Customer class to hold it also.

Posted 18-Oct-21 15:53pm

Rick York

Comments

Choi Yoojung 19-Oct-21 0:25am

i will try it out ! thanks!

Choi Yoojung · Answer 4 · 2021-10-18T20:57:00

I added the vector and it works perfect !

void show(vector<Customer>customers) {

    cout << "Confirmed Booking: " << endl;
    for (int i = 0; i < customers.size(); i++) {
        if (customers[i].book == true) {
            cout << customers[i].name << " is Booked" << endl;
        }
    }
}

int main() {
		
	string name;
	int age;
	bool student;
	char id;
	int i;
	
	Customer myObj;
	
	vector<Customer> customers;

	for(i=0;i<8;i++){
 	
		myObj.info();
		myObj.isStudent();
		myObj.isChild();
	
		ConfirmBooking(myObj);
		myObj.getConfirmation();
        myObj.setConfirm();
		customers.push_back(myObj);
	}
	
  show(customers);	
}

(C++) how can I create a fucntion to display this ?

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