IO流,带缓冲区的流中的特殊方法:readLine()和newLine()方法。

public class Demo4_Buffered(){

  public static void main(String[] args) throws IOException{

    BufferedReader br = new BufferedReader (new FileRead("xxx.txt"));

    String line;

    while((line = br.readLine()) != null){      //整行读取

      syso(line);

    }

    br.close();

  }

}

public class Demo5_Buffered(){

  public static void main(String[] args) throws IOException{

    BufferedReader br = new BufferedReader (new FileRead("xxx.txt"));

    BufferedWriter bw = new BufferedWriter (new FileWriter("aaa.txt"));

    String line;

    while((line = br.readLine()) != null){      //整行读取

      bw.writer(line);

      bw.newLine();   //写出回车换行符         和bw.write(" ");一个效果,但是newLine()是支持各种操作平台的

    }

    br.close();

    bw.close();

  }

}

原文地址:https://www.cnblogs.com/wangffeng293/p/13179402.html