To convert a string of date we can use the help from java.text.SimpleDateFormat that extends java.text.DateFormat abstract class.
import
java.text.DateFormat;
import
java.text.SimpleDateFormat;
import
java.text.ParseException;
import
java.util.Date;
public
Date StringToDate
{
DateFormat df =
new
SimpleDateFormat(
"dd/MM/yyyy"
);
try
{
Date today = df.parse(
"20/12/2005"
);
System.out.println(
"Today = "
+ df.format(today));
}
catch
(ParseException e)
{
System.out.println("Cannot convert to date "+e);
}
}
Today = 20/12/2005The example starts by creating an instance of
SimpleDateFormat
with "dd/MM/yyyy" format which mean that the date string is formatted in day-month-year sequence.Finally using the
parse(String source)
method we can get the Date
instance. Because parse method can throw java.text.ParseException
exception if the supplied date is not in a valid format; we need to catch it.Here are the list of defined patterns that can be used to format the date taken from the Java class documentation.
Letter | Date / Time Component | Examples |
G | Era designator | AD |
y | Year | 1996; 96 |
M | Month in year | July; Jul; 07 |
w | Week in year | 27 |
W | Week in month | 2 |
D | Day in year | 189 |
d | Day in month | 10 |
F | Day of week in month | 2 |
E | Day in week | Tuesday; Tue |
a | Am/pm marker | PM |
H | Hour in day (0-23) | 0 |
k | Hour in day (1-24) | 24 |
K | Hour in am/pm (0-11) | 0 |
h | Hour in am/pm (1-12) | 12 |
m | Minute in hour | 30 |
s | Second in minute | 55 |
S | Millisecond | 978 |
z | Time zone | Pacific Standard Time; PST; GMT-08:00 |
Z | Time zone | -0800 |
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