Format value to two decimal places without rounding

[RA6]

Hello all,

I want to format the below value to two decimal places without rounding it.

Example:

ColumnA	ColumnB	Result
171.456	2.321	169.135
25.45856	10.5426	14.91596

For info, Column A, B, and result is of type String and this result datatype in my output to remain as String.

My expected output should be 169.13 and 14.91

I have tried with the two option below:

String.format("%.2f", (Double.parseDouble(ColumnA) - Double.parseDouble(ColumnB)))

String.format("%.2f", (new BigDecimal(Var.var2).subtract(new BigDecimal(Var.var3)))) 

But it is rounding the value to: 169.14 and 14.92

Also, i want to know what is the difference between Big Decimal and Double? What should i use in my situation?

Thank you for your help.

Best regards,

Asadasing

[vboppudi · Accepted solution]

Hi,

Please try below.

Regards,

[RA6]

Hello Veeranjaneyulu,
Thank you for the solution. It works.
However, do you know the difference between bigdecimal and double?

How can you determine the usage of one of these?\

Regards,
Asadasing

[RA6]

@vboppudi

Tried your solution and encountering a blocking error.
Please see link below:
https://community.talend.com/t5/Design-and-Development/Tmap-Error-NumberFormatException-For-input-st...

Thank you for your help.

[manodwhb]

@asadasing,try with below way and let me know,if you are still facing issue.

row3.newColumn2==null | row3.newColumn2.equals("")?"0"row3.newColumn2.replace(",",".")).replace(" ","")