怎么使用Java读取处理后四行数据，把它们移动到第一行数据的后面，组成只有一行的数据

Question

"584","390","0639081942960403","189","鲁花 压榨一级花生油 -5L","桶","14","粮油","1、地道取材 甄选本土大花生

2、花生浓香 采用高温焙炒，生香留香技术 

3、去除黄曲素，无添加防腐剂 

4、健康美味

","133.25","36.00","4797.00","","1","","","","","","","桶","133.25","0.00","0.00","0.00"

Answer 1

把换行符替换成空字符串就行了吧。

Answer 2

    BufferedReader br = new BufferedReader(new FileReader(""));    String line = null;    int index = 0;    StringBuilder sb = new StringBuilder();    while ((line = br.readLine()) != null)    {        index++;        sb.append(line).append("\r\n");        if (index % 4 == 0)        {            System.out.println(sb.toString());            sb = new StringBuilder();        }    }