java文件的拷贝,(特别为二进制文件)

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * 
 * <b>Application name:</b><br>
 * <b>Application describing:</b>文件的拷贝,(特别为二进制文件) <br>

 */
public class FileCopy
{
    /**
     * 
     * {主函数}
     * 
     * @param args
     */
    public static void main(String[] args)
    {
        String srcFilePath = "c:"+File.separator+"第03章变量_1.pdf";
        String dstFilePath = "d:"+File.separator+"第03章变量_1.pdf";
        InputStream is = null;
        OutputStream os = null;
        try
        {
            is = new FileInputStream(srcFilePath);
            os = new FileOutputStream(dstFilePath);
            int readLength;
            byte[] buf = new byte[1024];
            while((readLength=is.read(buf, 0, buf.length))!=-1){
                os.write(buf, 0, readLength);
            }
        }
        catch (FileNotFoundException e)
        {
            // TODO Auto-generated catch block
            System.out.println("文件不存在");
            e.printStackTrace();
        }
        catch (IOException e)
        {
            // TODO Auto-generated catch block
            System.out.println("文件读取失败");
            e.printStackTrace();
        }finally{
            if(is!=null){
                try
                {
                    is.close();
                }
                catch (IOException e)
                {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            if(os!=null){
                try
                {
                    os.close();
                }
                catch (IOException e)
                {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
       

    }
}