Remove trailing comma from comma-separated string

Question

I got String from the database which have multiple commas (,) . I want to remove the last comma but I can\'t really find a simple way of doing it.

Answer 1

You can do something like using join function of String class.

import java.util.Arrays;
import java.util.List;

public class Demo {

    public static void main(String[] args) {
        List items = Arrays.asList("Java", "Ruby", "Python", "C++");
        String output = String.join(",", items);
        System.out.println(output);
    }

}