Rounding off float to 2 decimal places and returning the float

I tried doing bigdecimal but it doesnt work. :
BigDecimal bd = new BigDecimal(5 * 0.0394);
retval = bd.floatValue();
System.out.printf(" th %f\n",retval);
I see 0.197000. I know that there are 6 places since I didnt do %.2f. However its not the printf thats important . The float I want to return must be rounded off to two decimal places.
Thanks in advance for the help,
sb

Use BigDecimal.round( MathContext mc ), where the MathContext object is set to a precision value of 3;
BigDecimal roundedBigD = myOriginalBigD.round( new MathContext( 3 ) );� {�

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Hi all the pro out there..
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Refer
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Rounding off a float to two decimal places

I want to make a function where I shall pass a float and and integer.
The float shall have to be rounded off to a value in the integer.
Can anyone please suggest how to round off a float.
E.g.: if the float is 12.56890 and I want to round it off to 2 decimal places, then it should be 12.57.
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I didn't mention any datatypes like float, double.True, but that is what the question is about, so you weren't answering the question. For a change.
As I mentioned, that was just a mathematical steps to round of the floating point value. (Not in any programming languages point of view).False. You didn't mention that at all.
This is the code for that in java.So here you are mentioning datatypes and floats for the same piece of mathematics that you have already been told, with reasons, doesn't work in floating point.
which seems to be working fine
Seems to. What evidence do you have that the float actually got rounded? As opposed to got displayed as rounded? Which is not what the OP asked for.
And of course all that code seems to do is round 0.01 to two decimal places, which again is not what the OP asked for.
For any remaining fans of this 'technique', please explain the behaviour of the following code:
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          int     count = 0, errors = 0;
          for (double x = 0.0; x < 1; x += 0.0001)
               count++;
               double     d = x;
               int     scale = 2;
               double     factor = Math.pow(10, scale);
               d = Math.round(d*factor)/factor;
               if ((d % 0.01) != 0.0) // if 'd' really has been rounded this should be zero
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                    errors++;
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To remove decimal places and round

hi all ,
select       (sum(case when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) <> upper('Top')) then
            (((((H.SLURRY_VOL_ACTUAL * 5.6146)/H.SLURRY_YIELD)*94)/2000)   )
             when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) = upper('Top')) then
         (   ((nvl(H.CLASS_V_CEMENT,0)*94)/2000)   )
        when F.ITEM_UOM = 'Pound' then
      CEIL( ROUND((((((H.SLURRY_VOL_ACTUAL * 5.6146)/DECODE(H.SLURRY_YIELD,0,NULL,H.SLURRY_YIELD)))*94)*F.ITEM_PERCENT/100)))/2000
       end)*(j.opn_value/2)) SUM_MAT_ACT_TON ,--------transport
                   sum(case when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) <> upper('Top')) then
            ((H.SLURRY_VOL_ACTUAL * 5.6146)/H.SLURRY_YIELD)
      when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) = upper('Top')) then
            nvl(H.CLASS_V_CEMENT,0)
        when F.ITEM_UOM = 'Pound' then
            ROUND(((ROUND(((H.SLURRY_VOL_ACTUAL * 5.6146)/DECODE(H.SLURRY_YIELD,0,NULL,H.SLURRY_YIELD)))*94)*F.ITEM_PERCENT/100 )/P.ATTRIBUTE5)
   end) SUM_sload ,    ----sload
   sum(case when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) <> upper('Top')) then
            ((H.SLURRY_VOL_ACTUAL * 5.6146)/H.SLURRY_YIELD)
     -- when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) = upper('Top')) then
          -- nvl(H.CLASS_V_CEMENT,0)
        when F.ITEM_UOM = 'Pound' and F.BLEND <> 'PH'then
            ROUND(((ROUND(((H.SLURRY_VOL_ACTUAL * 5.6146)/DECODE(H.SLURRY_YIELD,0,NULL,H.SLURRY_YIELD)))*94)*F.ITEM_PERCENT/100 )/P.ATTRIBUTE5)
   end) BLENDING
,e.opn_job_desc
     FROM xxnp_opn_joblog_001 E,
          XXNP_OPN_JOBLOG_EST_002   F,
          XXNP_OPN_JOBLOG_STAGE_002 G,
          XXNP_OPN_JOBLOG_SLURRY_003 H,
    XXNP_OPN_JOBLOG_RES_005 J,
     MTL_SYSTEM_ITEMS_B P
      WHERE E.OPN_JOB_DESC   = 'K/D/SP158/SA399/1338/D/0510/1' AND
        E.MANUAL='N'
   and J.opn_resource_desc='4X4 PICK-UP OR LIGHT VEHICLES'
    AND E.OPN_JOBLOG_001_ID = J.OPN_JOBLOG_001_ID
     and F.INVENTORY_ITEM_ID=P.INVENTORY_ITEM_ID
       AND p.ORGANIZATION_ID='103'
      AND E.OPN_JOBLOG_001_ID = G.OPN_JOBLOG_001_ID
        AND G.OPN_JOBLOG_006_ID = H.OPN_JOBLOG_006_ID
        AND H.OPN_JOBLOG_007_ID = F.OPN_JOBLOG_007_ID
        AND G.OPN_JOBLOG_006_ID = H.OPN_JOBLOG_006_ID
        AND H.OPN_JOBLOG_007_ID = F.OPN_JOBLOG_007_ID
                                GROUP BY E.OPN_JOB_DESC,j.opn_value
o/p i am getting
SUM_MAT_ACT_TON      SUM_SLOAD                         BLENDING                                   OPN_JOB_DESC
11587.7954154787         1957.62401925833               1454.62401925833                       K/D/SP158/SA399/1338/D/0510/1
well can anyone guide me on obtaining the following output (to remove decimal places and round )
SUM_MAT_ACT_TON      SUM_SLOAD                         BLENDING                                   OPN_JOB_DESC
11588                           1958                                      1455                                          K/D/SP158/SA399/1338/D/0510/1thanking in advance
Edited by: makdutakdu on May 25, 2010 12:48 PM

select      round( (sum(case when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) upper('Top')) then
            (((((H.SLURRY_VOL_ACTUAL * 5.6146)/H.SLURRY_YIELD)*94)/2000)   )
             when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) = upper('Top')) then
         (   ((nvl(H.CLASS_V_CEMENT,0)*94)/2000)   )
        when F.ITEM_UOM = 'Pound' then
      CEIL( ROUND((((((H.SLURRY_VOL_ACTUAL * 5.6146)/DECODE(H.SLURRY_YIELD,0,NULL,H.SLURRY_YIELD)))*94)*F.ITEM_PERCENT/100)))/2000
       end)*(j.opn_value/2))) SUM_MAT_ACT_TON ,--------transport
                   round(sum(case when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) upper('Top')) then
            ((H.SLURRY_VOL_ACTUAL * 5.6146)/H.SLURRY_YIELD)
      when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) = upper('Top')) then
            nvl(H.CLASS_V_CEMENT,0)
        when F.ITEM_UOM = 'Pound' then
            ROUND(((ROUND(((H.SLURRY_VOL_ACTUAL * 5.6146)/DECODE(H.SLURRY_YIELD,0,NULL,H.SLURRY_YIELD)))*94)*F.ITEM_PERCENT/100 )/P.ATTRIBUTE5)
   end)) SUM_sload ,    ----sload
   round(sum(case when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) upper('Top')) then
            ((H.SLURRY_VOL_ACTUAL * 5.6146)/H.SLURRY_YIELD)
     -- when (F.ITEM_UOM = 'Cubic Feet' and upper(substr(H.SLURRY_TYPE,1,3)) = upper('Top')) then
          -- nvl(H.CLASS_V_CEMENT,0)
        when F.ITEM_UOM = 'Pound' and F.BLEND 'PH'then
            ROUND(((ROUND(((H.SLURRY_VOL_ACTUAL * 5.6146)/DECODE(H.SLURRY_YIELD,0,NULL,H.SLURRY_YIELD)))*94)*F.ITEM_PERCENT/100 )/P.ATTRIBUTE5)
   end)) BLENDING,
   e.opn_job_desc
     FROM xxnp_opn_joblog_001 E,
          XXNP_OPN_JOBLOG_EST_002   F,
          XXNP_OPN_JOBLOG_STAGE_002 G,
          XXNP_OPN_JOBLOG_SLURRY_003 H,
    XXNP_OPN_JOBLOG_RES_005 J,
     MTL_SYSTEM_ITEMS_B P
      WHERE E.OPN_JOB_DESC   = E.OPN_JOB_DESC AND
        E.MANUAL='N'
   and J.opn_resource_desc='4X4 PICK-UP OR LIGHT VEHICLES'
    AND E.OPN_JOBLOG_001_ID = J.OPN_JOBLOG_001_ID
     and F.INVENTORY_ITEM_ID=P.INVENTORY_ITEM_ID
       AND p.ORGANIZATION_ID='103'
      AND E.OPN_JOBLOG_001_ID = G.OPN_JOBLOG_001_ID
        AND G.OPN_JOBLOG_006_ID = H.OPN_JOBLOG_006_ID
        AND H.OPN_JOBLOG_007_ID = F.OPN_JOBLOG_007_ID
        AND G.OPN_JOBLOG_006_ID = H.OPN_JOBLOG_006_ID
        AND H.OPN_JOBLOG_007_ID = F.OPN_JOBLOG_007_ID
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Rounding off float to 2 decimal places and returning the float

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