[0802] Copy jobs picture

 1 package com.io;
 2 /**
 3  * 将图片复制一份
 4  * 2019-08-04
 5  * @author L
 6  */
 7 import java.io.DataInputStream;
 8 import java.io.DataOutputStream;
 9 import java.io.FileInputStream;
10 import java.io.FileNotFoundException;
11 import java.io.FileOutputStream;
12 import java.io.IOException;
13 import java.io.InputStream;
14 import java.io.OutputStream;
15 
16 public class Picture {
17     public static void main(String[] args) {
18         DataInputStream dis=null;
19         InputStream is=null;
20         
21         DataOutputStream dos=null;
22         OutputStream os=null;
23         
24         try {
25             is=new FileInputStream("D:\\star.jpg");
26             dis=new DataInputStream(is);
27             
28             os=new FileOutputStream("D:\\myPicture.jpg");
29             dos =new DataOutputStream(os);
30             int num;
31             while((num=dis.read())!=-1) {
32                 dos.write(num);
33             }
34             System.out.println("复制完成！");
35         } catch (FileNotFoundException e) {
36             // TODO Auto-generated catch block
37             e.printStackTrace();
38         } catch (IOException e) {
39             // TODO Auto-generated catch block
40             e.printStackTrace();
41         }finally {
42             try {
43                 dos.close();
44                 os.close();
45                 dis.close();
46                 is.close();
47             } catch (IOException e) {
48                 // TODO Auto-generated catch block
49                 e.printStackTrace();
50             }
51         }
52         
53     }
54 }