Tool class encapsulation (time conversion, document read/write)

Time Processing:

Import Java.util.Date;

Import java.text.ParseException;

Import Java.text.SimpleDateFormat;

public class datetool{

/**

* Convert Date (Chinese) to string (ms)

* @param date

* @param pattern

* @return

*/

public static String datetostring (Date date,string pattern) {

return new SimpleDateFormat (pattern). Format (date);

}

/**

* Convert string (milliseconds) to date (Chinese)

* @param datestring

* @param formate

* @return

* @throws ParseException

*/

public static Date stringtodate (String datestring,string formate) throws parseexception{

return new SimpleDateFormat (formate). Parse (datestring);

}

}

File processing:

Import Java.io.BufferedInputStream;

Import Java.io.BufferedOutputStream;

Import Java.io.File;

Import Java.io.FileInputStream;

Import java.io.FileNotFoundException;

Import Java.io.FileOutputStream;

Import java.io.IOException;

public class Iotool {

/**

* Byte stream loading and output

* @param srcfile

* @param destfile

*/

public static void function (File srcfile,file destfile) {

FileInputStream Fis=null;

FileOutputStream Fos=null;

try {

Fis=new FileInputStream (srcfile);

Fos=new FileOutputStream (destfile);

Byte[]bs=new byte[1024];

int length=0;

while ((Length=fis.read (BS))!=-1) {

Fos.write (BS, 0, length);

}

} catch (FileNotFoundException e) {

Todo:handle exception

E.printstacktrace ();

}catch (IOException e) {

Todo:handle exception

E.printstacktrace ();

}finally {

if (fis!=null) {

try {

Fis.close ();

} catch (IOException e) {

TODO Auto-generated catch block

E.printstacktrace ();

}

}

if (fos!=null) {

try {

Fos.close ();

} catch (IOException e) {

TODO Auto-generated catch block

E.printstacktrace ();

}

}

}

}

/**

* Character stream loading and output

* @param srcfile

* @param destfile

*/

public static void Function02 (File srcfile,file destfile) {

Bufferedinputstream Bis=null;

Bufferedoutputstream Bos=null;

try {

Bis=new Bufferedinputstream (New FileInputStream (srcfile));

Bos=new Bufferedoutputstream (New FileOutputStream (DestFile));

Byte[]bs=new byte[1024];

int length=0;

while ((Length=bis.read (BS))!=-1) {

Bos.write (bs,0,length);

}

} catch (FileNotFoundException e) {

Todo:handle exception

E.printstacktrace ();

}catch (IOException e) {

Todo:handle exception

E.printstacktrace ();

}finally {

if (bis!=null) {

try {

Bis.close ();

} catch (IOException e) {

TODO Auto-generated catch block

E.printstacktrace ();

}

}

if (bos!=null) {

try {

Bos.close ();

} catch (IOException e) {

TODO Auto-generated catch block

E.printstacktrace ();

}

}

}

}

}

Tool class encapsulation (time conversion, document read/write)