/************************************************************
 *Program to calculate how long it will take a population of 
 *roaches to completely fill a house from floor to ceiling.
 ***********************************************************/
public class BugTrouble
{
    public static final double GROWTH_RATE = 0.95;//95% per week
    public static final double ONE_BUG_VOLUME = 0.002;//cubic feet

    public static void main(String[] args)
    {
        System.out.println("Enter the total volume of your house"); 
        System.out.print("in cubic feet: ");
        double houseVolume = SavitchIn.readLineDouble();
        
        System.out.println("Enter the estimated number of");
        System.out.print("roaches in your house:"); 
        int startPopulation = SavitchIn.readLineInt();       
        int countWeeks = 0;
        double population = startPopulation;
        double totalBugVolume = population*ONE_BUG_VOLUME;
        
        while (totalBugVolume < houseVolume)
        {
            population = population + (GROWTH_RATE*population);
            totalBugVolume = population*ONE_BUG_VOLUME; 
            countWeeks++; 
        }
                
        System.out.println("Starting with a roach population of "
                                             + startPopulation);
        System.out.println("and a house with a volume of " 
                                 + houseVolume + " cubic feet,");
        System.out.println("after " + countWeeks + " weeks,"); 
        System.out.println("the house will be filled");
        System.out.println("floor to ceiling with roaches.");
        System.out.println("There will be " + (int)population 
                                            + " roaches.");
        System.out.println("They will fill a volume of " 
                          + (int)totalBugVolume + " cubic feet");
        System.out.println("Better call Debugging Experts Inc.");
    }
}