Hi,

Alright guys I have solved the problem. Being a newbie to c# caused me to submit program 35 times. I didn't realize that Math.Round() function will change 100.00 to 100 instead. Here are the lines which I changed.

double miles = distance(ship_latitude_radian, ship_longitude_radian, iceberg_latitude_radian, iceberg_longitude_radian);
            if (Math.Round(miles, 2) < 100.00)
            {
                Console.WriteLine("The distance to the iceberg: {0:F2} miles.", miles);
                Console.WriteLine("DANGER!");
            }
            else
            {
                Console.WriteLine("The distance to the iceberg: {0:F2} miles.", miles);
            }

s=floor(s*100+0.5)/100.0

Solved by making the following comparison in java:

if (Math.round(distance*100) < 10000) {
    System.out.println("DANGER!");
}

it will force it to compare with 2 digits precision.