public class Speedtest {

    int numbers = 100000000;

    float[] x1=new float[numbers];
    float[] y1=new float[numbers];
    float[] x2=new float[numbers];
    float[] y2=new float[numbers];
    float[] distance=new float[numbers];

    Random r = new Random(new Date().getTime());

    @Test
    public void testGenerateNumbers() {
        for (int i = 0; i < numbers; i++) {
            x1[i]=r.nextFloat();
            y1[i]=r.nextFloat();
            x2[i]=r.nextFloat();
            y2[i]=r.nextFloat();
        }

        testDistanceSpeed2();
        testDistanceSpeedStrict();
        testDistanceSpeed2();
        testDistanceSpeedStrict();
        testDistanceSpeed2();
        testDistanceSpeedStrict();

    }
    public void testDistanceSpeed2() {
        long s1 = System.currentTimeMillis();
        for (int i = 0; i < numbers; i++) {
            distance[i] = distanceSq(x1[i], y1[i], x2[i], y2[i]);
        }
        long s2 = System.currentTimeMillis();
        System.out.println("TIME: " + (s2 - s1));
    }

    public strictfp void testDistanceSpeedStrict() {
        long s1 = System.currentTimeMillis();
        for (int i = 0; i < numbers; i++) {
            distance[i] = distanceSqStrict(x1[i], y1[i], x2[i], y2[i]);
        }
        long s2 = System.currentTimeMillis();
        System.out.println("TIME STRICT: " + (s2 - s1));
    }

    public static float distanceSq(float x1, float y1,
                                   float x2, float y2)
    {
        x1 -= x2;
        y1 -= y2;
        return (x1 * x1 + y1 * y1);
    }
    public strictfp static float distanceSqStrict(float x1, float y1,
                                   float x2, float y2)
    {
        x1 -= x2;
        y1 -= y2;
        return (x1 * x1 + y1 * y1);
    }

}