Formatting Double into a String in iReport

Question

I'm doing a report, that I need to join 4 variables in one. If I treat the variables separately I can format them with no problem. But when I merge them into a String, the double value comes as 0.0 instead of 0.00

How can I make it comes as the original, 0.00? The code right now looks like this:

$F{someDoubleField} + "a string" + $F{anotherDoubleField} + "another string"

It prints:

0.0 a string 0.0 another string

instead of:

0.00 a string 0.00 another string

Remember that iReport uses Java, so maybe, Java code can help me out.

Solution 1

Use like below:

new DecimalFormat("0.00").format(doubleField) + "str"

Solution 2

Do the next:

1. Open Properties window for your report (right-mouse click on top node in tree view -> Properties)
2. Set the Language option to Java

3. Use such code in your text field expression:

    String.format("%.2f",$V{Sum}) + " " + $F{unit} 

   Here
   

   2 - number of digits after dot
   $V{Sum} - Double or Floaf variable (or field - $F{...})

Comments

[ehrhardt]

You didnt answer the question

[ehrhardt]

the answer would have been: new DecimalFormat("0.00").format($F{someDoubleField}) + "a string" + new DecimalFormat("0.00").format($F{anotherDoubleField}) + "another string"