public class MathUtil

{

public static double getCargoVolume(double height, double length, double depth, boolean heavyDuty)

{

double thickness = 0.25;

if (heavyDuty)

thickness *= 2;

double volume = (height - 2 * thickness) * (length - 2 * thickness) * (depth - 2 * thickness);

return volume;

}

public static int getTotal(int firstNumber, int secondNumber)

{

int sum = firstNumber + secondNumber;

return sum;

}

public static int absoluteSum(int first, int second)

{

int sum = Math.abs(first) + Math.abs(second);

return sum;

}

public static int absoluteSum(int first, int second, int third)

{

int sum = Math.abs(first) + Math.abs(second) + Math.abs(third);

return sum;

}

public static void main(String[] args)

{

System.out.println(getTotal(12, 12));

System.out.println(getCargoVolume(10.5, 12.5, 15.5, false));

System.out.println(absoluteSum(12, -12));

System.out.println(absoluteSum(12, -12, -12));

}

}