Conversion of strings and dates in java

Copy codeThe Code is as follows: import java. SQL. Timestamp;
Import java. text. DateFormat;

Import java. text. ParseException;

Import java. text. SimpleDateFormat;

Import java. util. Date;

Public class DateIO {

Public static void main (String [] args ){

Date date = new DateIO (). strToDate ("2013-04-01 ");

String strdate = new DateIO (). dateToStr (date );

String srrdate = new DateIO (). timestampToStr (System. currentTimeMillis ());

Timestamp ts = new DateIO (). strToTimestamp (new Date ());

}

// Convert String to Date

Public Date strToDate (String strdate ){

DateFormat format = new SimpleDateFormat ("yyyy-MM-dd ");

Date date = null;

Try {

Date = format. parse (strdate );

} Catch (ParseException e ){

E. printStackTrace ();

}

System. out. println ("date:" + date );

Return date;

}

// Convert Date to String

Public String dateToStr (Date date ){

// Year, month, and day ****-**-**

DateFormat format = new SimpleDateFormat ("yyyy-MM-dd ");

String str = format. format (date );

System. out. println ("str:" + str );

// Year, month, and day **-*-*

Format = DateFormat. getDateInstance (DateFormat. SHORT );

Str = format. format (date );

System. out. println (str );

// Year, month, and day ****-*-*

Format = DateFormat. getDateInstance (DateFormat. MEDIUM );

Str = format. format (date );

System. out. println (str );

// ***** Month day week *

Format = DateFormat. getDateInstance (DateFormat. FULL );

Str = format. format (date );

System. out. println (str );

Return str;

}

// Convert Timestamp to String

Public String timestampToStr (Long timestamp ){

SimpleDateFormat df = new SimpleDateFormat ("yyyy-MM-dd HH: mm: ss"); // defines the format, not in milliseconds

String str = df. format (timestamp );

System. out. println (str );

Return str;

}

// Convert Date to Timestamp

Public Timestamp strToTimestamp (Date date ){

SimpleDateFormat df = new SimpleDateFormat ("yyyy-MM-dd HH: mm: ss ");

String time = df. format (date );

Timestamp ts = Timestamp. valueOf (time );

System. out. println (ts );

Return ts;

}

}