java中用String.Join美化代码的实例讲解

package com.niu.demo;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
 
/**
 * @description: String.Join的使用
 * @createDate: 2020/12/19 1:58 下午
 * @updateDate: 2020/12/19 1:58 下午
 * @updateRemark:
 * @version: 1.0
 **/
public class Main {
 public static void main(String[] args) {
  String[] text = {"hello", "word","are","you","ok","?"};
  pt(String.join(",", text)); //hello,word,are,you,ok,?
  List<String> sList = new ArrayList<>();
  sList.add("a");
  sList.add("b");
  sList.add("c");
  pt(String.join("-", sList)); //a-b-c
  //在多个字符串对象中间加入连接字符
  pt(String.join("\t","I","am","a","student")); //I am a student
  pt(String.join("\t \n >>>:","string","a","b","c"));
  //string
  // >>>:a
  // >>>:b
  // >>>:c
 }
 public static void pt(Object o) {
  System.out.println(o);
 }
}