java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

public class Dobble {
  public static void main( String[] args ) {
    System.out.println(0.001);
    System.out.println(0.001f);
    System.out.println(1.001);
    System.out.println(1.001f);
    System.out.println(0.1);
    System.out.println(0.1f);
    System.out.println(0.01);
    System.out.println(0.01f);
    System.out.println(0.0001);
    System.out.println(0.0001f);
  }
}

This gives an output of 0.0010 for actual value 0.001, which is inconsistent 
with other numbers (compare other lines output). 

This happens for all of 0.001, 0.002, ..., 0.009.

It occurs on jdk1.3 & jdk1.2.2 on windows and jdk1.2.2 on a sparc.
(Review ID: 119151) 
======================================================================




java version "1.4.0-rc"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-rc-b91)
Java HotSpot(TM) Client VM (build 1.4.0-rc-b91, mixed mode)

DESCRIPTION OF THE PROBLEM :

---------- BEGIN SOURCE ----------
public class PrecisionTest {
	public static void main(String[] args) {
		System.out.println(Double.valueOf("0.003"));
	}
}
---------- END SOURCE ----------

System.out.println(Double.valueOf("0.003"));
Output will be 0.0030. I expect it to be 0.003.
(Review ID: 139078)
======================================================================
  xxxxx@xxxxx   2004-11-11 21:41:23 GMT

N/A

In general, it should not be expected that System.out.println(fp_literal) returns the same string as that which comprises fp_literal; in other words, println(0.1) _won't_ and shouldn't printout as "0.1".  Additionally, float and double version of (appearently) "the same" literal also in generaly won't print out as the same string.  However, trailing zeros should not be printed.

  xxxxx@xxxxx   2001-03-20

Verified unncessary trailing zeros still printed; this should be corrected.

  xxxxx@xxxxx   2002-05-28
Port fix from OpenJDK 6.
Posted Date : 2009-10-15 23:22:28.0