CountLT.cpp

//CountLT.cpp
//Aryelle Young
//Sep 23 2014
//Defines the CountLT class

#include "CountLT.h"

//Default Constructor
//takes a value from client code to use as initial bound
CountLT::CountLT(double bound) : the_bound(bound), count(0)
{

}

//Destructor
CountLT::~CountLT()
{

}

//Mutators

//Post: entry has been added to the collection tracked by CountLT.
void CountLT::put(double entry)
{
	if (entry < the_bound)
	{
		count++;
	}
}

//Accessors

//Post: the number of items less than the_bound has been returned.
int CountLT::get()
{
	return count;
}

CountLT.h

//CountLT.h
//Aryelle Young
//Sep22 2014
//An accumulator class whose objects
//count the number of entries in a
//sequence that are less than a given bound.


#ifndef _COUNTLT_H_
#define _COUNTLT_H_

class CountLT
{
public:
	//Default constructor
	CountLT(double bound);

	//Destructor
	~CountLT();

	//Mutators
	void put(double entry);

	//Accessors
	int get();


private:
	//Data members
	int count;
	double the_bound;
};
#endif

main.cpp

// main.cpp
// Aryelle Young
// Sep 24 2014
// Intended as a driver to test the functionality of class CountLT.

#include <iostream>
#include <iomanip>

#include "CountLT.h"

using namespace std;

int main()
{
	//Initial test of CountLT
	CountLT testLessThan(13.13);
	cout << "Count for new object testLessThan is " << testLessThan.get() << endl;

	testLessThan.put(0.98);
	testLessThan.put(-87.322);
	testLessThan.put(14.1);
	testLessThan.put(13.780);
	testLessThan.put(51.00);

	cout << endl;
	cout << "After adding the quantities 0.98, -87.322, 14.1, 13.780, and 51.00 ";
	cout << "to the collection tracked by the testLessThan object, the count is ";
	cout << testLessThan.get() << endl;

	testLessThan.put(13.109);
	testLessThan.put(0);
	testLessThan.put(7564.932);

	cout << endl;
	cout << "After adding the quantities 13.109, 0, and 7564.932 to the ";
	cout << "collection tracked by testLessThan, the count is " << testLessThan.get();
	cout << endl;

	cout << endl;

	double sequence[] = { -54.88, 99.15, 49.821, 100.936, 1.234, 0.7562, -0.624, 8256.777, 30.826, 71 };
	double upper_bound = 55.00;
	double lower_bound = 5.00;

	cout << "Given the sequence: " << endl;
	for (int i = 0; i < 10; i++)
	{
		cout << setw(14) << sequence[i] << endl;
	}

	CountLT upper_tracker(upper_bound);
	CountLT lower_tracker(lower_bound);

	for (int i = 0; i < 10; i++)
	{
		upper_tracker.put(sequence[i]);
		lower_tracker.put(sequence[i]);
	}

	int countBetween = upper_tracker.get() - lower_tracker.get();

	cout << endl;
	cout << "The number of entries between " << upper_bound;
	cout << " and " << lower_bound << " is " << countBetween;
	cout << "." << endl;

	return 0;
}

Makefile

main: main.cpp CountLT.cpp