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A Graphical User Interface (GUI) is a user interface based on graphics i.e. icons, pictures, menus, etc. instead of just plain text, it uses a mouse as well as a keyboard as an input device.
GUI applications enable the users (especially naive ones) to interact with a system easily and friendly. This presentation is meant for the individual who has little or no experience in Java GUI programming.
What is Node.js | Node.js Tutorial for Beginners | Node.js Modules | Node.js ...Edureka!
This Edureka "What is Node.js" tutorial will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi – Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
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You make use of a framework by calling its methods,inheritance,and supplying “call-backs” listeners.
Spring is the most popular application development framework for enterprise Java™.
Millions of developers use Spring to create high performing, easily testable, reusable code without any lock-in.
I talked about Vue.js at @agenciasomadev. In this talk I showed the basics about the Vue.js JavaScript Framework and it's simplicity. I hope you enjoy :)
A Graphical User Interface (GUI) is a user interface based on graphics i.e. icons, pictures, menus, etc. instead of just plain text, it uses a mouse as well as a keyboard as an input device.
GUI applications enable the users (especially naive ones) to interact with a system easily and friendly. This presentation is meant for the individual who has little or no experience in Java GUI programming.
What is Node.js | Node.js Tutorial for Beginners | Node.js Modules | Node.js ...Edureka!
This Edureka "What is Node.js" tutorial will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi – Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
Frameworks are large prewritten code to which you add your own code to solve a problem in a specific domain.
You make use of a framework by calling its methods,inheritance,and supplying “call-backs” listeners.
Spring is the most popular application development framework for enterprise Java™.
Millions of developers use Spring to create high performing, easily testable, reusable code without any lock-in.
I talked about Vue.js at @agenciasomadev. In this talk I showed the basics about the Vue.js JavaScript Framework and it's simplicity. I hope you enjoy :)
Cuadro comparativo del antiguo código y el actualdaiana suligoy
el archivo adjunto se trata de un documento que trata de explicar los cambios concretos que sufrió la legislación anterior Argentina y porque conceptos fue suplidos
Celeste Alvarez Atencia. Alumna del curso implementa practicas laborales mejoradas de la profesora Elsa Piedad Tobon de la Fundacion Universitaria Catolica del Norte.
Estudiante de Tecnologia en Gestion de Servicios Financieros.
BASADO EN: Hernández, P. J. A., Gallarzo, M., & Espinoza, M. J. D. J. (2011). Desarrollo organizacional. México: Pearson Educación. http://site.ebrary.com/lib/univucnsp/reader.action?ppg=321&docID=10957585&tm=1443302681187
Ajax is a method of employing JavaScript, DHTML, and the XMLHttp behaviour in the
browser to provide truly dynamic content on a Web page without a page refresh. There are
quantifiable benefits to be realized for end users and businesses, which include improved
usability and faster applications. In this tutorial I will look at a simple example using Ajax4JSF
with JSF, Facelets, Maven2 and Eclipse.
Stripes presentation for the Portuguese JUG session at JavaPT09 event.
Last version available at Speaker Deck: http://speakerdeck.com/samaxes/java-web-development-with-stripes.
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Presented at Bucharest Java User Group, http://www.bjug.ro/editii/5.html . Project source code available at: https://github.com/bucharest-jug/dropwizard-todo
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
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- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
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• How SAP Fiori paves the way for using AI in SAP apps
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The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
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- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
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While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
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In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
3. What is Java Server Faces?
JSF is a new and upcoming web application
framework that accomplishes the MVC paradigm
It is similar to Struts but has features and concepts
that are beyond those of Struts - especially the
component orientation.
Provides set of reusable custom components.
Provides set of JSP tags to access those
components.
3
4. JSF Architecture
JSF follows MVC framework
Model: objects and properties of application
View: Renderers take care of view.
Controller: FacesServlet/ JSF infrastructure
defines the flow of the application.
4
5. How JSF works
A form is displayed
Form uses <f:view> and <h:form>
The form is submitted to itself.
The bean is instantiated. Listed in the
managed-bean section of faces-config.xml
The action controller method is invoked.
The action method returns a condition.
The result page is displayed.
5
8. Example files
index.jsp,welcome.jsp – define the login and
welcome screens.
UserBean.java – manages user data
faces-config.xml – configuration file for the
application.
web.xml – deployment descriptor.
8
10. index.jsp
Tag Libraries: core and html.
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
Core tags are used to perform core actions and display nothing to the
user. Html tags are used to render html elements(text, form elements
etc) to the user.
<f:loadBundle> is a core tag. Loads properties file and makes it value
available to variable message.
<f:loadBundle basename=“com.corejsf..bundle.Messages" var="Message"/>
All JSF components must be nested inside <f:view> core tag.
<f:view>
<h:form>
<h3><h:outputText value="#{Message.inputname_header}"/></h3>
<h:inputText value="#{user.name}“ required=“true”/>
<f:validateLength minimum="2" maximum="20"/>
<h:inputSecret value="#{user.password}"/>
<h:commandButton value="Login" action="login"/>
</h:form>
</f:view>
10
11. Example (Cntd.)
Any attribute value that starts with # and is wrapped in {} is
dynamically substituted in
#{Message.inputname_header}
<h:form> represents form element
Form action is defined in the <h:commandButton> element.
<h:commandButton value="Login" action="login"/>
<h:inputText> for name field renders a textbox. Required attribute tells
the value must be provided by the user. Thus validating the field.
<h:inputText value="#{user.userName}" required="true">
Nested core tag provides range validation.
<f:validateLength minimum="2" maximum="20"/>
11
12. UserBean.java
public class UserBean {
public String getName() { . . . }
public void setName(String newValue) {. . . }
public String getPassword() { . . . }
public void setPassword(String newValue) { . . . }
...
}
12
14. Configuration File(Cntd.)
faces-config.xml defines how one page will navigate to
next. Also specifies managed beans.
<navigation-rule>
<from-view-id>/index.jsp</from-view-id>
<navigation-case>
<from-outcome>login</from-outcome>
<to-view-id>/welcome.jsp</to-view-id>
</navigation-case>
</navigation-rule
<from-view-id> page you are currently on.
<to-view-id> next page to display.
<from-outcome> value matches the action attribute of the
command button of index.jsp
<h:commandButton value="Login" action="login"/>
14
15. Configuration file (Cntd.)
Managed bean is the model of the framework.
<managed-bean-name> is the name the views use to
reference the bean.<managed-bean-name>user</managed-bean-name>
<h:inputText value="#{user.name}“ required=“true”/>
<managed-bean-class> is the fully classified name for the
bean.
<managed-bean-class> com.corejsf.UserBean </managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
15
17. Web.xml (Cntd.)
Javax.faces.CONFIG_FILES parameter tells where the JSF
configuration file exists.
<param-name>
javax.faces.CONFIG_FILES
</param-name>
<param-value>
/WEB-INF/examples-config.xml
</param-value>
Javax.faces.STATE_SAVING_METHOD specifies where the state
must be saved: client or server.
<param-name>
javax.faces.STATE_SAVING_METHOD
</param-name>
<param-value>server</param-value>
The servlet-mapping and servlet blocks specify that any URL that ends
in a .jsf extension should be redirected through a servlet called
javax.faces.webapp.FacesServlet.
17
18. What is Apache MyFaces?
First free open source implementation of
JSF.
Provides rich set of prefabricated
components.
18
19. MyFaces Component Libraries
Tomahawk
• Original MyFaces component library.
Tobago
• Apache Library now under MyFaces umbrella.
Trinidad
• Originally Oracle ADF components.
19
20. Using MyFaces Tomahawk Components
Add jar files to WEB-INF/lib
• Tomahawk.jar
• Commons-fileupload.jar
• Commons-validator.jar
• Oro-xxx-jar
Import the extended tag library
<%@ taglib uri=http://myfaces.apache.org/tomahawk prefix="t"%>
Enable extensions filter
• Add a filter and two filter mappings in web.xml
- Delivers JavaScript code and style sheets. Components which use
JavaScript will fail without these entries in web.xml
20
21. Date Component
Input Text control for dates.
Attributes
• Value – the Date value.
• Type – Defines the content type. Date,time or both
• popupCalendar - If true, button added that pops up
JavaScript calendar for input. Default is false
21
22. t:inputDate example
Main JSP page
<h:form>
Date: <t:inputDate value=“#{sample.date}” popupCalendar="true"/><BR>
<h:commandButton action="show-date"/>
</h:form>
Bean
package coreservlets
import java.util.*;
public class SampleBean {
private Date date;
public Date getDate() { return(date); }
public void setDate(Date date) {
this.date = date;
}
22
23. Example (Cntd.)
faces-config.xml
<managed-bean>
<managed-bean-name>sample</managed-bean-name>
<managed-bean-class>
coreservlets.SampleBean
</managed-bean-class>
<managed-bean-scope>request</managed-bean-scope>
</managed-bean>
<navigation-rule>
<from-view-id>/date.jsp</from-view-id>
<navigation-case>
<from-outcome>show-date</from-outcome>
<to-view-id>/WEB-INF/results/show-date.jsp</to-view-id>
</navigation-case>
</navigation-rule>
Result Page
<H2>You selected the following date:<BR>
<h:outputText value="#{sample.date}"/></H2>
23
25. Tabbed Pane
Description- for switching panels.
Attributes
• bgColor – the background color of the active tab
• activeTabStyleClass,inactiveTabStyleClass
t:panelTab contains per tab content. HTML goes within
<f:verbatim>
Shared content is outside t:panelTab but within
t:panelTabbedPane
Everything must be inside h:form
Non tab content goes outside t:panelTabbedPane
25
34. validateEmail
Attributes: no attributes are required
Example
<TR><TD>
<B>Email:</B>
<t:inputText value="#{order.email}“ required="true" id="email">
<t:validateEmail
message="Invalid email address"/>
</t:inputText>
<TD><h:message for="email" styleClass="red"/></TD>
</TD></TR>
34
35. validateCreditCard
Attributes: no attributes are required.
You can specify that only Visa, MasterCard etc
are acceptable.
Example:
<TR><TD>
<B>Credit Card:</B>
<t:inputSecret value="#{order.creditCard}“ required="true" id="card1">
<t:validateCreditCard
message="Invalid credit card number"/>
</t:inputSecret>
<TD><h:message for="card1" styleClass="red"/></TD>
</TD></TR>
35
36. validateEquals(custom validator for equal inputs)
Attributes:
for: Required
message: Optional
Example
<t:inputSecret value="#{order.creditCard}“ required="true" id="card1">
<t:validateCreditCard message="Invalid credit card number"/>
</t:inputSecret>
<TD><h:message for="card1" styleClass="red"/></TD>
</TD></TR>
<TR><TD>
<B>Confirm Credit Card:</B>
<t:inputSecret required="true" id="card2">
<t:validateEqual for="card1"
message="The two credit card entries do not match"/>
</t:inputSecret>
<TD><h:message for="card2" styleClass="red"/></TD>
36
37. Advantages of JSF
The big advantage of using JSF is that it
provides reusable components.
It has drag and drop IDE support.
Provides built-in form validation.
Provides set of APIs and associated custom
tags to create HTML forms that have
complex interface.
37
38. Disadvantages of JSF
Bad Documentation
Compared to the standard servlet and JSP APIs, JSF
has fewer online resources, and many first-time users
find the online JSF documentation confusing and
poorly organized.
Undeveloped tool support
There are many IDEs with strong support for standard
servlet and JSP technology. Support for JSF is only
beginning to emerge, and final level is yet to be
determined.
38