Answer to Question #227443 in C++ for Pete

Question

1) Create two classes which stores distance in feet, inches and meter, centimeter format respectively. Write a function which compares distance in object of these classes and displays the larger one.

2) Create a class which stores name, author and price of a book. Store information for n

number of books. Display information of all the books in a given price range using

friend function.

Answer 1

Question 1:

#include<iostream>
using namespace std;
class Book{
	private:
		string bookName, bookAuthor;
		double price;
	
	public:
		Book (){
			
		}
		Book(string n, string a, double p){
			bookName = n;
			bookAuthor = a;
			price = p;
		}
		void setDetails(string n, string a, double p){
			bookName = n;
			bookAuthor = a;
			price = p;
		}
		string getName(){
			return bookName;
		}
		string getAuthor(){
			return bookAuthor;
		}
		double getPrice(){
			return price;
		}
		void printBook(){
			cout<<"The book name is\t"<<bookName<<endl;
			cout<<"The book author is\t"<<bookAuthor<<endl;
			cout<<"The book price is\t"<<price<<endl;
		}
	friend void display(int x);
	
};
void display(int x ){
	string bookName, bookAuthor;
		double price;
	
	
	Book arr[x];
	
	for(int i=0; i<x; i++){
		cout<<"Enter the book name\n";
		cin>>bookName;
		cout<<"Enter the author \n";
		cin>>bookAuthor;
		cout<<"Enter the book price\n";
		cin>>price;
		arr[i].setDetails(bookName,bookAuthor,price);
	}
	for(int i=0; i<x; i++){
		cout<<"Details of book "<<(i+1)<<"  are:\n";
		arr[i].printBook();
	}
}
int main(){
	int x;
	cout<<"Enter the number of books\n";
	cin>>x;
	display(x);
}

Question 2

#include<iostream>


using namespace std;
class DB;
class DM
{
 float meters,centimeters;
 public:
 DM(float m, float c){
 	meters = m;
 	centimeters  = c;
 }
 friend void compares(DM & x,DB &y);
};
class DB
{
 float inch;
 float feet;
 public:
 	DB(float i, float f){
 		inch = i;
 		feet = f;
	 }




friend void compares(DM & ,DB & );
};
void compares(DM &a,DB &b)
{
	if((b.feet * 0.0254) < a.meters  ){
		cout<<"Distance in meters and centimers is larger\n";
	}
	else{
		cout<<"Distance in inches and feet is larger\n";
	}
	
	
}
int main()
{
 DM a(20,30);
 DB b(100,60);
compares(a,b);
 
 


}