double d = (double)15552451L;

Long l = new Long(15552451L);
    double d = l.doubleValue();

double d = (double)15552451L;

double result = Double.longBitsToDouble(15552451L);

double nan = Double.longBitsToDouble(0xfff0000000000001L);
double positiveInfinity = Double.longBitsToDouble(0x7ff0000000000000L);
double positiveInfinity = Double.longBitsToDouble(0xfff0000000000000L);

long bits = Double.doubleToRawLongBits(Double.NaN);

Long i = 1000000;
String s = i + "";
Double d = Double.parseDouble(s);
Float f = Float.parseFloat(s);

long x = somevalue;

double y = Double.longBitsToDouble(x);

double d = (double) 15552451L;

long number = 499999999000000001L;
    double converted = (double) number;
    System.out.println( number - (long) converted);