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Convert a List of String to a comma separated String in Java
At first, let’s say the following is our List of String −
List<String> myList = new ArrayList<>(Arrays.asList("One", "Two", "Three", "Four"));
Now, convert this to a comma separated string using String.join()
String str = String.join(", ", myList);
Example
Following is the program to convert List of String to a comma separated String in Java −
import java.util.*; public class Demo { public static void main(String args[]) { List<String> myList = new ArrayList<>(Arrays.asList("One", "Two", "Three", "Four")); System.out.println("List = " + myList); // comma separated String str = String.join(", ", myList); System.out.println("String (Comma Separated) = " + str); } }
Output
List = [One, Two, Three, Four] Comma separated String: One, Two, Three, Four
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