Java String, Data, calendar time conversion

1.Calendar Conversion String

Calendar Calendat = Calendar.getinstance ();

SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd");

String datestr = Sdf.format (Calendar.gettime ());

2.String Conversion Calendar

String str= "2012-5-27";

SimpleDateFormat sdf= New SimpleDateFormat ("Yyyy-mm-dd");

Date Date =sdf.parse (str);

Calendar calendar = Calendar.getinstance ();

Calendar.settime (date);

3.Date Conversion String

SimpleDateFormat sdf= New SimpleDateFormat ("Yyyy-mm-dd");

String Datestr=sdf.format (New Date ());

4.String Conversion Date

String str= "2012-5-27";

SimpleDateFormat sdf= New SimpleDateFormat ("Yyyy-mm-dd");

Date date= sdf.parse (str);

5.Date Conversion Calendar

Calendar calendar = Calendar.getinstance ();

Calendar.settime (New Java.util.Date ());

6.Calendar Conversion Date

Calendar calendar = Calendar.getinstance ();

Java.util.Date Date =calendar.gettime ();

7.String turn into Timestamp

Timestamp ts = timestamp.valueof ("2012-1-14 08:11:00");

8.Date Turn TimeStamp

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

String time = Df.format (new Date ());

Timestamp ts = timestamp.valueof (time);

Java String, Data, calendar time conversion