Converting a <Long> List to a Comma Separated String

Question

Hi, I have a requirement when I need to convert Listfrom a Longdata type to comma separated String. That would be a suitable way. I thought about using a string builder or converting it to List<String>, and then using StringUtilsjoin to get String.

I am looking for a solution java 7without using guavaor java 8.

Answer 1

You can try the following:

StringUtils.join(mylist, ',');