Double.parseDouble-在diff平台上对相同结果是否有严格的实现？

Question

I need some floating point operations to produce the same exact results between different machines. I see we have things like strictfp and StrictMath to do this. My starting state however will load the floating point numbers from a String. Example:

double x = Double.parseDouble("0.1234..");

I don't see something like StrictMath.parseDouble() though. Is there something like that?

My app has to save the state of the operations to disk at arbitrary points and reload state, I'm not even sure parseDouble will restore values to their exact representations on the same machine.

I believe I might have to use a fixed point math approach for this, but wanted to check if I'm missing anything here.

Thanks

Answer 1

I need some floating point operations to produce the same exact results between different machines.

This is what Double.parseDouble does. From the Javadoc from Double.valueOf

Returns a Double object holding the double value represented by the argument string s.