Dev JAVA Source Clarity with examples is the beauty

Camel’s message model In Camel, there are two abstractions for modeling messages. 1) org.apache.camel.Message— The fundamental entity containing the data being carried and routed in Camel. 2) org.apache.camel.Exchange— The Camel abstraction for an exchange of messages. This exchange of messages has an “in” message and as a reply, an “out” message. Message 1) Messages are the entities used by systems ...

Description 1) Camel is an integration framework that aims to make your integration projects productive and fun. Camel’s focus is on simplifying integration. 2) The core of the Camel framework is a routing engine, or more precisely a routingengine builder. 3) It allows you to define your own routing rules, decide from which sources to accept messages, and determine how ...

An Overview of the Collections API : 1) For instance, every kind of collection can be created by the same uniform syntax, writing the collection class name followed by its elements. Traversable(1, 2, 3) Iterable("x", "y", "z") Map("x" -> 24, "y" -> 25, "z" -> 26) Set(Color.red, Color.green, Color.blue) SortedSet("hello", "world") Buffer("x", "y", "z") IndexedSeq(1.0, 2.0) LinearSeq("a", "b", "c") 2) ...

Basics 1) By default, Scala always picks immutable collections. For instance, if you just write Set without any prefix or without having imported Set from somewhere, you get an immutable set, and if you write Iterable you get an immutable iterable collection, because these are the default bindings imported from the scala package. 2) To get the mutable default versions, ...

Activity In Android, an activity is represent a single screen. Most applications have multiple activities to represent different screens. For example one activity is loginUser and another is WelcomeUser. Now, we need to know how these activities interact with each other, when user click on login button. Then next activity WelcomeUser will be called and display the welcome user message. ...

Introduction 1) The usages of the collection operation make inputs and output explicit as function parameters and results. 2) These explicit inputs and outputs are subject to static type checking. The bottom line is that the large majority of misuses will manifest themselves as type errors. 3) Parallel collections support the same operations as sequential ones, so no new operations ...

Simple Example to Quickly Start Android Application: Simple Android project in Eclipse IDE + ADT plugin, This ADT eclipse plug in help to create Android project creation and management, most likely components drag and drop, auto-complete and many useful features to speed up your Android development cycles. Summary steps to develop an Android application : 1) Install Android SDK 2) ...

Basics 1) Scala integrates features of both object-oriented and functional programming. Scalability = Functional Programming + Objects 2) Scala has the same compilation model as Java and C#, namely separate compilation and dynamic class loading, so that Scala code can call Java libraries, or .NET libraries in the .NET implementation. To the JVM, Scala code and Java code are indistinguishable. ...