在Java上将日期格式转换为其他格式

Question

I have been developing application with GWT on Java. I used calendar tool for my project on this site . When i select any date, give this format (23-Aug-13) to me.

I use this code:

final DateField txtBirthofDay = new DateField("Birth of Day", "dob", 190);
txtBirthofDay.setValue(new Date());

I want to insert this date to database. So, I have to convert this format (2013-08-23). I converted lots of date format each other before but I didn't convert string type (Aug).

Answer 1

Reference these formats Java Date Format Docs :

try this:

SimpleDateFormat dt = new SimpleDateFormat("dd-MMM-yyyy");
Date date = dt.parse("23-Aug-2013");;

// *** same for the format String below
SimpleDateFormat dt1 = new SimpleDateFormat("yyyy-MM-dd");
System.out.println(dt1.format(date));

Answer 2

you should go for SimpleDateformat as per your requirement. Click this link for how to use simpledateformat in java

link

Answer 3

Try this,

    DateFormat df=new SimpleDateFormat("dd-MMM-yy");
    Date date=df.parse("23-Aug-13");
    System.out.println(df.format(date));
    df=new SimpleDateFormat("yyyy-MM-dd");
    String requiredFormatedDate=df.format(date);
    System.out.println(requiredFormatedDate);// 2013-08-23

Answer 4

SimpleDateFormat formats your Date to the given pattern

    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    System.out.println(sdf.format(new Date()));