Chapter 5.1, Problem 3STQ

Explanation of Solution

Modified definition of the class “SpeciesFirstTry” in Listing 5.3:

The modified definition of the class “SpeciesFirstTry” after assigning a number for each species is given below:

//Import package

import java.util.Scanner;

//Define a class "SpeciesFirstTry"

public class SpeciesFirstTry

{

    //Declare a string variable for species name

    public String name;

    //Declare an int variable for species number

    public int number;

    //Declare an int variable for population

    public int population;

    //Declare a double variable for species name

    public double growthRate;

    //Function definition for "readInput"

    public void readInput()

    {

        //Create scanner object

        Scanner keyboard = new Scanner(System.in);

        //Read input for species name from user

System.out.println("What is the species' name?");

        name = keyboard.nextLine();

        //Read input for species number from user

System.out.println("What is the species' number?");

        number = keyboard.nextInt();

        //Read input for population from user

System.out.println("What is the population of the species?");

        population = keyboard.nextInt();

        //Read input for growth rate from user

System.out.println("Enter growth rate (% increase per year):");

        growthRate = keyboard.nextDouble();

    }

    //Function definition for "writeOutput"

    public void writeOutput()

    {

        //Display species name

        System.out.println("Name = " + name);

        //Display species number

        System...