Archives: Date

Java – Calculate Difference Between Two Dates Using Joda Time

July 15, 2011 | By Prasanna Sherekar | Post comment

You can use a PeriodFormatter to get the format of your choice.

Try the following sample code.

DateTime dt = new DateTime();

DateTime twoHoursLater = dt.plusHours(2).plusMinutes(10).plusSeconds(5);

Period period = new Period(dt, twoHoursLater);

PeriodFormatter HHMMSSFormater = new PeriodFormatterBuilder()
        .printZeroAlways()
        .minimumPrintedDigits(2)
        .appendHours().appendSeparator("-")
        .appendMinutes().appendSeparator("-")
        .appendSeconds();
        .toFormatter(); // produce thread-safe formatter

System.out.println(HHMMSSFormater.print(period));

DateTime dt = new DateTime();

DateTime twoHoursLater = dt.plusHours(2).plusMinutes(10).plusSeconds(5);

Period period = new Period(dt, twoHoursLater);

PeriodFormatter HHMMSSFormater = new PeriodFormatterBuilder()

.printZeroAlways()

.minimumPrintedDigits(2)

.appendHours().appendSeparator("-")

.appendMinutes().appendSeparator("-")

.appendSeconds();

.toFormatter(); // produce thread-safe formatter

System.out.println(HHMMSSFormater.print(period));

Java JSP – JSTL Date Format Example

July 10, 2011 | By Prasanna Sherekar | Post comment

This example show how to format date in JSP using format tag library.

<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<html>
<head>
</head>

<body>
    <jsp:useBean id="date" class="java.util.Date"/>    
    Today is: <fmt:formatDate value="${date}" type="date" pattern="dd-MMM-yyyy"/>
</body>

</html>

<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>

<html>

<head>

</head>

<body>

<jsp:useBean id="date" class="java.util.Date"/>

Today is: <fmt:formatDate value="${date}" type="date" pattern="dd-MMM-yyyy"/>

</body>

</html>

Java – Convert java.util.Date to JodaTime

June 5, 2011 | By Prasanna Sherekar | Post comment

java.util.Date date = new java.util.Date();

org.joda.time.DateTime dateTime = new org.joda.time.DateTime(date);

java.util.Date date = new java.util.Date();

org.joda.time.DateTime dateTime = new org.joda.time.DateTime(date);

Make sure date isn’t null, though, otherwise it acts like new new DateTime()