zoukankan      html  css  js  c++  java
  • java第四次作业

    /**

    • @param args
      */
      public static void copy(File a,File b){
      try {
      FileInputStream fis = new FileInputStream("a.mp3");
      FileOutputStream fos = new FileOutputStream("temp.mp3");
      byte[] buf = new byte[1024];
      int len;
      int read = fis.read();
      while((len = fis.read(buf))!=-1){
      fos.write(buf, 0, len);
      }
      fis.close();
      fos.close();
      } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
      }

    }
    public static void main(String[] args) {
    // TODO Auto-generated method stub
    File a = new File("");
    File b = new File("");
    long start,end;
    start = System.currentTimeMillis();
    copy(a,b);
    end = System.currentTimeMillis();
    System.out.println("复制所用时间:" + (end - start) + "ms");
    }

  • 相关阅读:
    计算机网络 其他1
    C++ part9
    C++ part8
    操作系统 part5
    C++ part7
    MyXls导出Excel的各种设置
    C# excel操作
    Castle
    C# Keycode对照表
    IEnumerable.Select和SelectMany的区别
  • 原文地址:https://www.cnblogs.com/liucong110/p/5402190.html
Copyright © 2011-2022 走看看