Converting string to float in Java without round it [duplicate]

Question

Possible Duplicate:
Rounding in java Float.parseFloat

I want to convert strings to float i say:

System.out.println(Float.parseFloat("1553781.9829"));

Output:

1553782.0

I say:

System.out.println(Float.valueOf("1553781.9829"));

Output:

1553782.0

How to get Float without lossing precision?

Answer 1

use System.out.println(Double.parseDouble("1553781.9829")); instead

float has a limitation of smaller size (4 bytes) so it's not good for big decimals, double has the double size (8 bytes)

Answer 2

If you are looking for accuracy, I would suggest BigDecimal

This is just like normal wrapper class which provides methods for all your operations. And yes it takes argument as String as well.

  BigDecimal bd = new BigDecimal("1553781.9829");
  System.out.println(" bd :"+ bd);  //prints the same value

URL : http://docs.oracle.com/javase/1.5.0/docs/api/java/math/BigDecimal.html