//Exercise 4-F.

public class MathUtil

{

public static void main(String[] args)

{

printDifference(-4, 5);

printAbsValue(-45);

printDifference(1000, 4000000);

}

private static void printDifference(int a, int b)

{

int difference = a - b;

System.out.println("The values of a and b are: " + a + " and " + b);

System.out.println("This difference between a and b is: " + difference);

System.out.println();

printAbsValue(difference);

}

private static void printAbsValue(int c)

{

int absoluteValue = Math.abs(c);

System.out.println("The value of c is: " + c);

System.out.println("The absolute value of c is: " + absoluteValue);

System.out.println();

}

}