String operations

Is it possible to do string manipulations within a rule?
I need to build a string out of elements of a String-ArrayList seperated by “,”.

the quick answer is yes
As I am just happen to look at some of this, you may want to check out this post where group names are reconstructed in a rule:


and this post here:

where configurations are saved in a string file

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Thanks for the input, I didn’t know that StringBuilder was possible.