In a population, the birth rate and death rate are calculated as follows: Birth

Question

In a population, the birth rate and death rate are calculated as follows:

Birth Rate = Number of Births ÷ Population

Death Rate = Number of Deaths ÷ Population

For example, in a population of 100,000 that has 8,000 births and 6,000 deaths per year, the

birth rate and death rate are:

Birth Rate = 8,000 ÷ 100,000 = 0.08

Death Rate = 6,000 ÷ 100,000 = 0.06

Design a Population class that stores a population, number of births, and number of deaths for a period of time. Member functions should return the birth rate and death rate. Implement the class in a program. Input Validation: Do not accept population figures less than 1, or birth or death numbers less than 0.

Explanation / Answer

The below code is in C#.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Demo
{
public class Program
{

static void Main(String[] args)
{ //Creating Population class object

Population population= new Population();

//Assigning values to Population class members
population.populationData=100000;
population.numberOfBirths=8000;
population.numberOfDeaths=6000;

double birthRate= population.GetBirthRate(population);
double deathRate = population.GetDeathRate(population);

if(birthRate!=-5)
{
Console.WriteLine(birthRate);
}
else { Console.WriteLine("Invalid Data"); }
if(deathRate!=5)
{
Console.WriteLine(deathRate);
}
else { Console.WriteLine("Invalid Data"); }
Console.ReadKey();
}

  
}

public class Population
{
//Defining properties, taking these as double so that they can handle decimal values
public double populationData { get; set; }
public double numberOfBirths { get; set; }
public double numberOfDeaths { get; set; }

  
//Defining Member functions
public double GetBirthRate(Population population)
{
  
if (population.populationData < 1 || population.numberOfBirths < 0)
{ return -5; }
else
{
return population.numberOfBirths / population.populationData;
}
}

public double GetDeathRate(Population population)
{
if (population.populationData < 1 || population.numberOfDeaths < 0)
{ return -5; }
else
{
return population.numberOfDeaths / population.populationData;
}
  

}

}

}

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.