ArrayList集合到文件改进版本

package com.czie.iot1913.lps.IO.BufferStream;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;

/**
 * FileName: ArrayListToTxt01
 * Author:   lps
 * Date:     2022/3/26 18:02
 * Sign:刘品水 Q：1944900433
 */
public class ArrayListToTxt01 {
    public static void main(String[] args) throws IOException {
        //创建集合
        ArrayList<Students> array = new ArrayList<Students>();
        //创建学生对象
        Students s1 = new Students("it01","刘品水",20,"镇江");
        Students s2 = new Students("it02","刘品火",21,"南京");
        //添加进集合
        array.add(s1);
        array.add(s2);
        //创建字符缓冲输出流对象
        BufferedWriter bw = new BufferedWriter(new FileWriter("F:\\JavaCode\\array.txt"));
        //遍历集合 得到学生对象
        for (Students s:array){
            //吧学生对象数据拼接成指定的字符串
            StringBuilder sb = new StringBuilder();
            sb.append(s.getNumber()+","+s.getName()+","+s.getAge()+","+s.getLiveofplace());
            //填写
            bw.write(sb.toString());
            //bw.write(String.valueOf(sb));
            bw.newLine();
            bw.flush();
        }
        bw.close();

    }
}