public static float distance (int x0, int y0, int x1, int y1)
    {
        return (float)Math.sqrt(((x1 - x0) * (x1 - x0)) +
                                ((y1 - y0) * (y1 - y0)));
    }
public static float distance ( int x0 , int y0 , int x1 , int y1 ) { return ( float ) Math . sqrt ( ( ( x1 - x0 ) * ( x1 - x0 ) ) + ( ( y1 - y0 ) * ( y1 - y0 ) ) ) ; }
Return the distance between the given points.