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  • I/O-----字符输出流

    package io.day04;

    import java.io.BufferedReader;

    import java.io.BufferedWriter;

    import java.io.FileReader;

    import java.io.FileWriter;

    import java.io.IOException;

      public class TestBuffer {  

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

         buReader();  

        buWriter();  }

       private static void buWriter() throws IOException {   

        BufferedWriter bw = new BufferedWriter (new FileWriter("src/b.txt"));   

        bw.write("来");  

         //刷新缓存   

        bw.flush();  

         //默认执行flush(),关闭管道   

        bw.close();   

       }

       private static void buReader() throws Exception {   

        BufferedReader br = new BufferedReader (new FileReader("src/b.txt"));   

        //读取一行记录

        //  String str = br.readLine();

         //  str =br.readLine();

         //  System.out.println(str);

          //读所有的   String str1;   

       while((str1=br.readLine())!=null){   

         System.out.println(str1);   

       }

        br.close();  

      }

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  • 原文地址:https://www.cnblogs.com/www123----/p/6832440.html
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