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Convert a Set of String to a comma separated String in Java
Let us first create a set with string values −
Set<String>set = new HashSet<>(Arrays.asList("One", "Two", "Three", "Four", "Five", "Six"));
Now, convert it to a comma separated string using String.join() −
String str = String.join(", ", set);
Example
Following is the program to convert set of string to a comma separated string in Java −
import java.util.*; public class Demo { public static void main(String args[]) { Set<String>set = new HashSet<>(Arrays.asList("One", "Two", "Three", "Four", "Five", "Six")); System.out.println("Set = " + set); String str = String.join(", ", set); System.out.println("Comma separated String: "+ str); } }
Output
Set = [Five, Six, One, Four, Two, Three] Comma separated String: Five, Six, One, Four, Two, Three
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