public class FunctionComparison5 {

    public static void main (String[] argv)
    {
        // Initialize sum.
        double sum= 0;

        // Compute interval = range/number-of-points:
        double interval = (10.0 - 0.0) / 50.0;

        // Generate 50 values in the range [0,10]
        for (double x=0; x<=10; x+=0.2) {
            double f = 3*x + 5;
            double g = 3*x + 10;
            sum += interval * Math.abs (f - g);
        }

        System.out.println ("Distance f to g: " + sum);
    }

}