vb.net free barcode dll Two-Minute Drill in Java

Generator Code 39 Full ASCII in Java Two-Minute Drill

Two-Minute Drill
Scanning Code 39 Full ASCII In Java
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ANSI/AIM Code 39 Generation In Java
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TwO-MINUTE DRILL
Reading Code 3/9 In Java
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Using Thin Clients with HTML and the JavaScript API
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Code39 Creator In C#.NET
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q HTML is a markup language used to present static content in the form of
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Encoding Code39 In .NET Framework
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web pages.
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Code 128 Creation In Java
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q JavaScript is different than Java; it is a scripting language used to provide
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interactivity in web pages.
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q A thin client is an application that is not much more than a user interface
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that connects to an enterprise server for its data and processing.
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q HTML and JavaScript are useful for creating user interfaces. q All the user needs to access an HTML application is a web browser. q HTML and JavaScript provide only limited user interface components.
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Using J2ME MIDlets
q J2ME is a branch of Java. q J2ME is for resource-limited devices. q MIDlets are applications written in J2ME for a MIDP device. q Profiles and configurations are used to define a device. q MIDlets can be developed and tested on desktop computers. q MIDlets can only display basic user interfaces.
Using Java Applets as Fat Clients
q Applets are Java programs that are normally embedded in web pages. q Applets can contain simple or complex interfaces. q Applets are normally launched from a web page and downloaded before
they start.
q Applets can download updates to the Java Virtual Machine if needed. q Each time an applet is started, they are reloaded, ensuring that users will
always have the latest version.
q Applets may be slow to start since they are loaded from the network.
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Understanding Client-Side Technologies
Using the Java Swing API as a Fat Client
q Swing is a graphical user interface toolkit. q Swing is lightweight, meaning it draws and manages its own components. q AWT is a heavyweight graphical user interface toolkit, meaning it relies on
native components to render its interface.
q Swing can be used to create the richest and most complex interfaces. q Using Swing can add complexity to a project and increase the needed
resources for it to run.
Self Test
SELF TEST
Using Thin Clients with HTML and the JavaScript API
1. What technology is used to create interactive web pages A. HTML B. Java C. Enterprise servers D. JavaScript 2. What is true of HTML and JavaScript user interfaces (Choose all that apply.) A. The user must have a network connection to your web server. B. There is limited access to the client system. C. The JavaScript processing is done on the client-side system. D. Complex and rich interfaces can be created. 3. What displays and executes HTML and JavaScript user interfaces A. Applets B. Mobile devices C. Web browsers D. Swing
Using J2ME MIDlets
4. Which devices would most likely use J2ME (Choose two.) A. A candy vending machine B. A desktop computer C. A PDA (personal digital assistant) D. A web server 5. What are used to define the features that a J2ME device has (Choose all that apply.) A. Profiles B. Configurations C. XML D. A properties file E. UML
11:
Understanding Client-Side Technologies
6. Which of the following are true about J2ME applications (Choose all that apply.) A. They are deployed via Java Web Start. B. They can have complex user interfaces. C. They can play back multimedia files. D. They are written in JavaScript. 7. Which of the follow is NOT true about J2ME applications A. They can be developed and debugged on most desktop computers. B. They are designed for resource limited devices. C. They can have complex and rich user interfaces. D. Applications for mobile phones are often called MIDlets.
Using Java Applets as Fat Clients
8. Finish the sentence: Applets are normally embedded in __________. A. Mobile devices B. Enterprise servers C. Web pages D. MIDlets E. User interfaces 9. Which of the following are advantages of applets (Choose all that apply.) A. When a new version is released, users will automatically receive it. B . They start up very quickly. C. They look and work like native applications. D. They don t need to be installed on the user s system. 10. Which of the following is NOT true about applets A. Applets have full access to the user s computer. B. Applets will download the latest Java Virtual Machine if the remote system is not up to date. C. Applets will always be the latest deployed version of the application because they are reloaded from the remote server every time they are launched.
Self Test
11. Applets can use Swing to create complex graphical user interfaces A. True B. False
Using the Java Swing API as a Fat Client
12. Which of the following is true A. Swing and AWT are both heavyweight toolkits. B. Swing and AWT are both lightweight toolkits. C. Swing is a heavyweight toolkit and AWT is a lightweight toolkit. D. Swing is a lightweight toolkit and AWT is a heavyweight toolkit. 13. Swing can be used to do the following. (Choose all that apply.) A. Create relatively native looking applications B. Create complex and rich user interfaces C. Play an audio file D. Be used inside of an applet E. Be used inside of a MIDlet 14. Which of the following can Java Web Start do (Choose all that apply.) A. Execute JavaScript code B. Deploy the latest versions of a Java application C. Display HTML web pages D. Load and start a Java application 15. Which of the following will produce the most native looking application for a desktop system A. Swing B. MIDlet C. Applet D. XML E. AWT
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