Starting Out With Java: From Control Structures Through Objects Download Pdf
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Starting Out with Java: From Control Structures through Objects provides a step-by-step introduction to programming in Java. Gaddis covers procedural programmingcontrol structures and methodsbefore introducing object-oriented programming, ensuring that students understand fundamental programming and problem-solving concepts.
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Starting Out with Java: From Control Structures through Objects download pdf
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Starting Out with Java: From Control Structures through Objects provides a brief yet detailed introduction to programming in the Java language. Starting out with the fundamentals of data types and other basic elements, readers quickly progress to more advanced programming topics and skills. By moving from control structures to objects, readers gain a comprehensive understanding of the Java language and its applications.
As with all Gaddis texts, the Sixth Edition is clear, easy to read, and friendly in tone. The text teaches by example throughout, giving readers a chance to apply their learnings by beginning to code with Java.
MyProgrammingLab is an online homework, tutorial, and assessment program designed to work with this text to engage students and improve results. Within its structured environment, students practice what they learn, test their understanding, and pursue a personalized study plan that helps them better absorb course material and understand difficult concepts.
This combined online course is the perfect way to master Oracle programming. You'll work with SQL, PL/SQL, Java, and Python programming as you learn to write advanced queries and generate business reports.
This course will teach you how to use SQL to build applications and generate business reports, master SQL using an Oracle database, and learn PL/SQL extension language to write sophisticated queries against an Oracle database. You will also learn to write useful Java classes, applying Object-Oriented concepts such as inheritance, and create Java programs that work with these classes. The introductory section will show you how Python works and what it's good for. You will also gain an understanding of Python's place in the wider programming world.
You will begin coding quickly after starting the course. Afterwards, you'll move on to advanced methods in which you'll learn how to work with iPhone Notebook, the Collections Module, regular expressions, databases, CSV files, JSON, and XML. You will also learn advanced sorting, how to write object-oriented code in Python, and how to test and debug their Python code. In the last section, you get a rapid introduction to NumPy, pandas, and matplotlib, which are Python libraries. This course will prepare you for entry into the job market as a Java or Python programmer or an entry-level Oracle SQL Developer or allow you to take on more responsibility using new skills gained in a current job.
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This chapter describes how to use data bindings, data controls, and the data binding expression language (EL) within a MAF AMX application feature. In addition, object scope lifecycles, managed beans, UI hints, validation, and data change events are also discussed.
Mobile Application Framework implements two concepts that enable the decoupling of the user interface (UI) technology from the business service implementation: data controls and declarative bindings. Data controls abstract the implementation technology of a business service by using standard metadata interfaces to describe the service's operations and data collections, including information about the properties, methods, and types involved. Using JDeveloper, you can view that information as icons that you can drag and drop onto a page. Declarative bindings abstract the details of accessing data from data collections in a data control and invoking its operations. At runtime, the model layer reads the information describing the data controls and bindings from the appropriate XML files and then implements the two-way connection between the user interface and the business service.
The group of bindings supporting the user interface components on a page are described in a page-specific XML file called the page definition file. The model layer uses this file at runtime to instantiate the page's bindings. These bindings are held in a request-scoped map called the binding container, accessible during each page request using the EL expression #bindings. This expression always evaluates to the binding container for the current page. You can design a databound user interface by dragging an item from the Data Controls panel and dropping it on a page as a specific UI component. When you use data controls to create a UI component, JDeveloper automatically creates the code and objects needed to bind the component to the data control you selected.
The Mobile Application Framework comes with two out-of-the box data controls: the DeviceFeatures data control and the ApplicationFeatures data control. The DeviceFeatures data control appears within the Data Controls panel in JDeveloper, enabling you to drag and drop the primary data attributes of data controls to your application as (text) fields, and the operations of data controls as command objects (buttons). These drag and drop actions will generate EL bindings in your application and the appropriate properties for the controls that are created. The bindings are represented in a DataControls.dcx file, which points at the data control source, and the page bindings link the specific page's reference to the data control. For information about the ApplicationFeatures data control, see Section 4.6, "What You May Need to Know About Custom Springboard Application Features with MAF AMX Content."
At runtime, you pass data to pages by storing the needed data in an object scope where the page can access it. The scope determines the lifespan of an object. Once you place an object in a scope, it can be accessed from the scope using an EL expression. For example, you might create a managed bean named foo, and define the bean to live in the view scope. To access that bean, you would use the expression #viewScope.foo.
Mobile Application Framework variables and managed bean references are defined within different object scopes that determine the variable's lifetime and visibility. MAF supports the following scopes, listed in order of decreasing visibility:
Object scopes are analogous to global and local variable scopes in programming languages. The wider the scope, the higher the availability of an object. During their lifespan, these objects may expose certain interfaces, hold information, or pass variables and parameters to other objects. For example, a managed bean defined in application scope will be available for use during multiple page requests for the duration of the application. However, a managed bean defined in view scope will be available only for the duration of one page request within a feature.
EL expressions defined in the application scope namespace are available for the life of the application, across feature boundaries. You can define an application scope in one view of an application, and then reference it in another. EL expressions defined in the page flow scope namespace are available for the duration of a feature, within the bounds of a single feature. EL expressions defined in the view scope namespace are available for the duration of the view, within the bounds of a single page of a feature. In addition to these variable-containing scopes, MAF defines scopes that can expose information about device properties and application preferences. These scopes have application-level lifetime and visibility. For more information, see Section 14.3.6.2, "About the Managed Beans Category" and Section 14.3.6.3, "About the Mobile Application Framework Objects Category."
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