In this article we are going to see how to format a Date in java using the standard class java.text.SimpleDateFormat SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner. It allows for formatting (date -> text), parsing (text -> date), and normalization. SimpleDateFormat allows you to start by choosing any user-defined patterns for date-time formatting. However, you are encouraged to create a date-time formatter with either getTimeInstance, getDateInstance, or getDateTimeInstance in DateFormat. Each of these class methods can return a date/time formatter initialized with a default format pattern. You may modify the format pattern using the applyPattern methods as desired.

In this post we’ll see how to do hot-reload of properties file used by a web-application. Hot-reload is useful when we want change some property in a file without restart the application server (like JBoss). Restart an application-server (or servlet-container) means restart all the web-apps that are running under that application-server, with resulting unavailability of some sensible service. For this scope we’ll use the Java class PropertiesConfiguration in the Apache Common Configuration library. This class allow to bind a properties file to an PropertiesConfiguration Java Object through which read the single properties.