java IO流读取保存图片文件

java  IO流读取保存图片文件

package io;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class PictureCopy {
public static void main(String[] args) throws IOException {
BufferedInputStream in = new BufferedInputStream(new FileInputStream("E://a//QQ图片20141021152833.jpg"));
BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream("E://b//copy.jpg"));
int i;
while((i=in.read())!=-1){
out.write(i);
}
out.flush();

out.close();
in.close();
}
}