Answer to Question #216234 in C++ for Derick

Question

Define a class Pairs with 2 integer data members, f & s, where f represents 

the 1st value in the ordered pair and s represents the 2nd value. Objects of type Pairs can be used wherever ordered pairs are 

needed.

The class must have a default constructor that initializes data members to 

0, & 2overloaded constructors, 1 with one int parameter and the other with 

2 int parameters. The 1-parameter constructor should initialise the 1st 

member of the pair; the 2nd member of the pair must be 0. The 2-parameter 

constructor must initialise both members of the ordered pair.

The class must have a destructor that outputs 'Bye'

Add accessor functions that return the values stored in each of the member

variables of an object of class Pairs & mutator functions to update each of the member variables of an object of class Pairs

respectively. The class must contain a void member 

function reset() that resets the member variables of a Pairs to values 

specified by parameters.

Answer 1

#include<iostream>
#include<bits/stdc++.h>
using namespace std;


class Pairs{
	public:
		int f,s;
		
		Pairs()
		{
			
		}
		
		Pairs(int n)
		{
			f = n;
			s = 0;
		}
		
		Pairs(int n, int m)
		{
			f = n;
			s = m;
		}
		
		int get_f()
		{
			
			return f;
		}
		
		int get_s()
		{
			return s;
		}	
		
		void update(int a, int b)
		{
			f = a;
			s = b;
			cout<<"Values of f and s updated"<<endl;
		}	
	
		void reset(int n, int m)
		{
			f = n;
			s = m;
			cout<<"Values of f and s is reset"<<endl;
		}
		
		~Pairs()
		{
			cout<<"Bye"<<endl;
		}
};


int main()
{
	Pairs ob1(5);
	Pairs ob2(10,20);
	cout<<"Value of f "<<ob2.get_f()<<endl;
	cout<<"Value of s "<<ob2.get_s()<<endl<<endl;	
	ob2.reset(0,0);
	cout<<"Value of f "<<ob2.get_f()<<endl;
	cout<<"Value of s "<<ob2.get_s()<<endl;	
	cout<<endl<<endl;
	ob2.update(30,40);
	cout<<"Value of f "<<ob2.get_f()<<endl;
	cout<<"Value of s "<<ob2.get_s()<<endl;	
	cout<<endl<<endl;
	
}