Java：String、Date、Calendar之间的转换

转化 String

Calendar calendat = ();

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

String dateStr = (());

 

转化Calendar

String str="2012-5-27";

SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");

Date date =(str);

Calendar calendar = ();

(date);

 

转化String

SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");

String dateStr=(new Date());

 

转化Date

String str="2012-5-27";

SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");

Date date= (str);

 

转化Calendar

Calendar calendar = ();

(new ());

 

转化Date

Calendar calendar = ();

date =();

 

转成 Timestamp

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

 

转 TimeStamp

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

String time = (new Date());

Timestamp ts = (time);