JavaBeat

Frequently we may have to add or update content of the HTML elements in the web pages. The data we need to add or edit may come from various sources dynamically. jQuery has number of utility methods to achieve this goal. We can add elements or edit element’s data using jQuery.  For instance, we can [...]

As we already know, AJAX is a technique to update parts of a web page without reloading the entire web page. Ajax stands for Asynchronous JavaScript and Xml. jQuery supports AJAX functionality through various methods. Using jQuery AJAX methods we can request text, HTML, XML or JSON content from the server. We can send HTTP [...]

We use jQuery selectors to identify, select and manipulate the elements of the HTML document. Using jQuery selectors we can identify an element with its ID and class. Once we identify the element(s) we want, we can read the element’s attributes along with attribute values, apply style sheets, hide or show element content based on [...]

jQuery is a free, open source JavaScript library intended to simplify multi-browser client side scripting. jQuery has very active developer community constantly improving its core and jQuery is the most famous JavaScript library as of today. The current version of jQuery is 1.8. We can use jQuery to manipulate DOM elements, send Ajax request, receive [...]

Taskflows are a very useful feature in Oracle ADF which provide a modular approach for defining control flow in an application. It allows to create application flow graphs which can be tied together to build the complete application. So instead of considering an application as a collection of different JSF pages, in ADF we would [...]

In our previous post we saw in detail about the foreach. map, flatMap and collect methods in the Iterable trait. In this post we will look into detail about reduceLeft, reduceRight, foldLeft, foldRight methods of the Iterable trait. These methods are almost similar in the way the operate on the collection so it should be [...]

While I was going through the Scala collections API, I found the mere reading through the method and its functionality is not going to help. And I also realised that it will be useful if I can document them. And with that idea, I will try to document the APIs which I have tried. Please [...]

In Java (Java 7 and before) we can store an object reference in a variable or some primitive value in which case Classes and Primitive types are the first class citizens there, but in Scala we can assign method/function definitions to variables, we can pass around function definitions to other functions and we can even [...]

Before we proceed to learn about Apply and Unapply methods, its good to know what a companion object is. A companion object in Scala for some class say Fraction is defined as: One can provide apply(args) and unapply(args) methods in the companion objects which can be used implemented to some special operations in Scala. Suppose [...]

In our previous article we covered very basic concepts on traits. In this article we will expand on our initial work and explore the inherent power of traits. As we said here just like the Interfaces traits can have abstract methods. Also traits can extend other traits just like Interfaces can extend other interfaces. We [...]