Java的Set转成逗号分隔的字符串

package com.javaedge.collection.set;

import org.apache.commons.lang.StringUtils;

import java.util.HashSet;
import java.util.Set;

/**
* Set转逗号分隔字符串
*
* @author JavaEdge
* @date 2021/10/8
*/
public class Set2String {

public static void main(String[] args) {
Set<String> set = new HashSet<>();
set.add("Java");
set.add("Edge");
set.add("公众号");
System.out.println(set);

Object[] array = set.toArray();
String splitSet = StringUtils.join(array);
System.out.println("splitSet:" + splitSet);

String splitSetWithComma = StringUtils.join(array, ",");
System.out.println("splitSetWithComma:" + splitSetWithComma);
    }
}