Possible Duplicate: Java: convert List<String> to a join()d string Having this: List<String> elementNames =

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Editorial Team

Asked: May 22, 20262026-05-22T20:59:03+00:00 2026-05-22T20:59:03+00:00

Possible Duplicate:
Java: convert List<String> to a join()d string

Having this:

List<String> elementNames = Arrays.asList("h1", "h2", "h3", "h4", "h5", "h6");

What is an elegant way to get String with a custom delimiter, like so:

"h1,h2,h3,h4,h5,h6"

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Editorial Team · Answer 1 · 2026-05-22T20:59:04+00:00

Editorial Team

If you don’t mind using the StringUtils library provided by apache, you could do:

// Output is "a,b,c"
StringUtils.join(["a", "b", "c"], ',');

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