How to do velocity concatenation?

Question

I have three variables that are extracted from date: date, month and year separately. I want to concatenate them into one variable and then convert into a date format. I am trying like this

#set( $str = "$date_curr1$month_curr1$year_curr1" )
#set( $dateFormated = $dateTool.toDate("ddMMyyyy", $str))

Solution

There are several mistake in your code DateTool dateformat wrong Your format should be dd-MM-yyyy not ddMMyyyy.

Velocity string concatenation we need to use always variables and set in velocity always #set I have added this map

contextMap.put("dateTool",new DateTool());
contextMap.put("date_curr1","14");
contextMap.put("month_curr1","06");
contextMap.put("year_curr1","2017");

And velocity file

#set($concat ="-")
#set( $str = "$date_curr1$concat$month_curr1$concat$year_curr1 ")
$str
#set( $dateFormated = $dateTool.toDate("dd-MM-yyyy",$str))
$dateFormated

Output

14-06-2017