Converting Float to Double in a not so common way!!!!

I was working on a project and i had this strange but common problem. I was getting a value from an external system which was a primitive float. But, in our system it was all double. I had to convert the float to double without losing any precision. I tried to cast it directly into double but it didn't work. As, say, for example, if i was trying to convert 39.355F to double, then it turned out to be 39.35497... It always used to change the precision and in my case i didn't want it to change due to some processing i would be doing on it later. You could say i could have just rounded it off, but, in my case it wouldn't work. So, here i found a nice cute way to convert float to double as it is with out change in even a single digit also. It may seem it is not needed but believe me some times this all you can do. At least, this is what i could figure out when deadline was on my head.

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public static double floatToDouble (float converThisNumberToFloat) {

String floatNumberInString = String.valueOf(converThisNumberToFloat);
double floatNumberInDouble = Double.parseDouble(floatNumberInString);
return floatNumberInDouble;

}

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