parseDouble return scientific computing number

[Quick Function]

if I use Double.parseDouble("0.0005"), it will return 5 E-4. How can I
get 0.0005? Thanks,

qq

 

[Andrew Thompson]

if I use Double.parseDouble("0.0005"), it will return 5 E-4. How can I
get 0.0005?

<http://java.sun.com/j2se/1.5.0/docs/api/java/text/NumberFormat.html>

HTH

 

[Michael Borgwardt]

if I use Double.parseDouble("0.0005"), it will return 5 E-4. How can I
get 0.0005?

You already *have* 0.0005. "0.0005" and "5e-4" are different representations
of the same abstract number, and parseDouble() returns the number, not any
particular representation (well, internally it's of course represented in
a different, third way, namely IEEE 754).

Your problem is not with parseDouble(), but with the way you're converting
the abstract number back into a String representation later on. If you want
to control that conversion, you have to use java.text.DecimalFormat.format()
instead of just doing something like System.out.println(number);