Here you can find the source of StringArrayToString(List
public static String StringArrayToString(List<String> array)
//package com.java2s; //License from project: Open Source License import java.util.Arrays; import java.util.List; public class Main { public static String StringArrayToString(String[] array) { return StringArrayToString(Arrays.asList(array)); }/*from ww w. j a va2s . c o m*/ public static String StringArrayToString(List<String> array) { StringBuilder sb = new StringBuilder(); for (String n : array) { if (sb.length() > 0) sb.append(','); sb.append("").append(n).append(""); } return sb.toString(); } }