【善用新语法，让代码更优美】

jadk1.8为我们提供了String.join()方法

几个使用的例子。让我们在项目灵活的使用它，使代码更加优美

package com.niu.demo;

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

/**
 * @description: String.Join的使用
 * @author: nxq email: niuxiangqian163@163.com
 * @createDate: 2020/12/19 1:58 下午
 * @updateUser: nxq email: niuxiangqian163@163.com
 * @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);
    }
}