- /*
- 复制一个图片
- 思路:
- 1,用字节读取流对象和图片关联
- 2,用字节写入流对象创建一个图片文件。用于存储获取到的图片数据
- 3,通过循环读写,完成数据的存储
- 4,关闭资源
- */
- import java.io.*;
- class CopyPic
- {
- public static void main(String[] args)
- {
- FileOutputStream fos =null;
- FileOutputStream fis = null;
- try
- {
- fos = new FileOutputStream("c:\\2.bmp");
- fis = new FileInputStream("c:\\1.bmp");
-
- byte[] buf = new byte[1024];
- int len = 0;
- while ((len=fis.read(buf))!=-1)
- {
- fos.write(buf,0,len);
- }
- }
- catch (IOException e)
- {
- throw new RuntimeException ("复制文件失败");
- }
- finally
- {
- try
- {
- if (fis!=null)
- {
- fis.close();
- }
- }
- catch (IOException e)
- {
- throw new RuntimeException ("读取文件失败");
- }
- try
- {
- if (fos!=null)
- {
- fos.close();
- }
- }
- catch (IOException e)
- {
- throw new RuntimeException ("写入文件失败");
- }
-
- }
- //System.out.println("Hello World!");
- }
- }
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