Value Convertion

[swarupakp]

I m using iReport 3.0.0
The value which is of Double type having 10.566899952 .I want to convert
this value to 10.57. How to roundfig the value in jasper reports..If anybody knows the answer pls help me..

[Giulio Toffoli]

just apply a pattern to the textfield showing the number, or use the expression:

 

new java.text.DecimalFormat("#,##0.00").format( $F{my_number} )

Giulio

[swarupakp]

Thanq.Its Working..I have given in iReport Pattern as ###0.00..If it is double its working..But some times i may have String.B'coz

I m converting  field value (Inches to Cms) .So for that if i am having the in field i need to multiply with 2.54.But if the field value will be null that time its giving Null Pointer Exception..So to avoid that i can convert null to 0 then i can multiply..But we shouldnt show 0 in that place..If its null i have to show empty string over there..So if i m taking the field in String type..I can apply Blank when null..But the format is not coming i am doing like below.

(new Double(Double.parseDouble($F{Inches})*2.54).toString().

The result is String type.But i want to show in ###0.00 this format..But its not roundfig the value after the point..Its showing 111.1258 .But i want the value like 111.13.

If it is string its not converting..I knew we cannot truncate with String type values..But why the pattern is available if the data is in String type..

[Giulio Toffoli]

just check for null:

 

(  $F{Inches}  != null )  ? (new Double(Double.parseDouble($F{Inches})*2.54) )  :  null

The number pattern is applied only to textfield showing numbers.

Giulio