字符串拼接和字符串数组拼装成字符串

  使用前提是使用jdk1.8

package com.neutron.string;import java.util.ArrayList;import java.util.List;public class String2List {public static void main(String[] args) {// 字符串List转化为StringList<String> strs = new ArrayList<String>();strs.add("first");strs.add("second");strs.add("third");strs.add("forth");String result = String.join(",", strs);System.out.println("first,second,third,forth".equals(result));// 字符串使用特定字符进行拼接String result2 = String.join("-", "01", "02", "03", "04");System.out.println("01-02-03-04".equals(result2));}}