Split & join string

Question

I have a rowset. I need to combine the elements of this collection into one line, and then split this line back and get the original collection of rows. Specifically, I need to enter a separator character for a join / split operation. Given the fact that source strings can contain any characters, I also need to deal with demarcation. My question is very simple - is there a Java class / library that can provide me with the necessary functionality out of the box? Something like:

String join(String[] source, String delimiter, String escape); String[] split(String source, String delimiter, String escape); 

or similar, without having to do manual work?

Answer 1

Without the accelerating part there is:

• StringUtils.split(..) and StringUtils.join(..) from commons-lang
• Joiner and Splitter from guava .

Answer 2

Separation: String.split takes a regular expression pattern as an argument (delimiter) and returns the result of String[] .