Borland JBuilder 7 Product Certification. Study Guide

Transcription

1 Borland JBuilder 7 Product Certification Study Guide Guía ofrecida por el Grupo Danysoft Primer Borland Learning Partner de España y Portugal Para realizar el examen o cursos oficiales preparatorios contacte con formación@danysoft.com, o llámenos al Version Copyright Borland Software Corporation.- All Rights Reserved.

2 Introduction This study guide is designed to walk you through requisite information to become product certified in JBuilder 7. The material in this document is organized in the following four sections: Test Overview describes the rules and the organization of the test Technical Resources recommends training courses, books and manuals that can help acquire the knowledge required to pass the test Test Sections lists topics tested in each test section Sample Questions provides sample questions with answers. 2 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

3 Test Overview General Details The test is organized as follows, Online test (hosted by Prometric Prime web based testing system) Maximum time allowed for test is 60 minutes Test will contain 60 questions (total pool of questions is several hundred) Minimum score required to pass is 80% ( = 48 or more correct answers) All test questions are multiple choice. Most questions are of a multiple choice / single answer type. Some questions are multiple choice / multiple answer type. No partial credit is given for the later type of question. All test questions are equally weighted, and thus count equallytoward the final score. Organization of Questions The test's questions are grouped into the following sections of knowledge, JBuilder Interface and Configuration Java Libraries Java Beans Java Language/Objected Oriented Programming Database Concepts/Data Access Technique Java Virtual Machine InternetBeans Express Servlets Enterprise Java Beans (EJB) Deployment of Java Applications. Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 3

4 Each section contains a large pool of questions. At least one question is randomly chosen from each section. Every iteration of the test contains the same number of questions from each section. We do not provide the actual number of questions per section. Notice that some subject areas are considered to be advanced topics, or instance, Enterprise Java Beans (EJB). Although questions are asked on advanced topics, the questions themselves test fundamental knowledge of these topics. Thus a fundamental understanding and familiarity of advanced JBuilder topics is necessary for successful Borland JBuilder Product Certification. 4 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

5 Resources Training Course Application Development with JBuilder 7 is a five-day instructor-led course available through Borland and Borland Certified Training Partners. See for details. On-line Documentation Borland JBuilder documentation can be obtained from, In particular review the following on line books: Building Applications Database Application Developer s Guide Getting Started with Java Web Application Developer s Guide Enterprise JavaBeans Developer s Guide (first five chapters) Further JBuilder information in the form of white papers and technical information documents may be found at: Further Java language information can be found at In particular: Books Cay S. Horstmann and Gary Cornell. Core Java 2, Volume1: Fundamentals. Fifth Edition. Sun Microsystems Press, Cay S. Horstmann and Gary Cornell. Core Java 2, Volume II: Advanced Features. Fourth Edition. Sun Microsystems Press, Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 5

6 Test Sections JBuilder Interface and Configuration This section tests the candidate s knowledge of basic JBuilder interface and configuration features and properties. The Object Inspector You will be expected to understand the functionality of the Object Inspector. All knowledge required to answers questions related to this subject is available in the Help system. How to determine if there is a property editor available for a specific property. How to invoke property editors. The interrelationships between various properties. Effects of setting properties on the settings of other properties. Simultaneously setting values of properties belonging to multiple components. The Debugger The ability to debug your programs, applets and beans is crucial to producing robust, commercial-quality code. The debugger information in the Help system contains the knowledge required to correctly answer questions in the test. IDE Definition, activation and use of Breakpoints Keystroke shortcuts How to debug applets Debugger settings and their function Knowing how to use the IDE to implement your projects is basic to the Certification process. The knowledge for this section of the test questions comes primarily from the Help system, but at this point you should have received enough training and practiced enough to understand all of these concepts. 6 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

7 Docking and undocking of IDE windows IDE options and their use Project options The definition of the various file extensions for files created by JBuilder during the process of creating an application How to include.java code into projects How to reference classes in external packages not included with JBuilder Stable and unstable packages Libraries and their purpose in JBuilder Loading Java beans into the component palette Built-in Editor text formatting and indentation commands Java Libraries This section tests the candidate s knowledge of Java Foundation Classes (JFC), especially the classes belonging to the Swing toolkit. Components Like other Borland IDE products, JBuilder uses the component model for visual development of applications. Without an understanding of the components included in JBuilder, how they work, and their properties, methods and events, you will not be able to do your job. All of the knowledge required to answer questions related to these issues is located in the Help system. How to select and use components in your application efficiently Components as containers for other components How to identify parent containers of components Component properties and their functions Constraint properties Working with graphic images in components Working with menus, their properties, methods and events. Differences between similar components, such as JTextField and JTextArea How to select the right component when faced with similar functionality How to define and use dialog windows, including the differences between modal and modeless dialogs Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 7

8 How to assign focus in a frame, and how to get a component to refuse focus Manipulating fonts Exchanging data between components Frame layouts, what they are, how they work and when to set them Initializing the visual components of a frame Event-Driven Programming The event model introduced in Java 1.1 is used by both AWT and the wing toolkit (introduced in Java 1.2). To pass the certification test you must not only understand event-driven programming but also understand how events work in Java, the events associated with components and how to use them. Refer to the Help system for any information you need on this subject. Basic component events and how to use them Anonymous class events Event handler signatures Component listeners The AWT and Swing Toolkit JBuilder supplies several libraries of JavaBean components on the component palette for user interface design. These include components from the AWT and Swing toolkits as well as Borland s dbswing components (Professional and Enterprise editions only). Using these libraries requires knowledge of their class hierarchies. Again, these are documented in the JBuilder Help System. Understanding the JBuilder AWT class hierarchy AWT components and their functionality Limitations of AWT components The Window class, its properties and methods. Non Visual classes, their properties and methods Swing components, their methods and properties and how to use them How to deploy applications that use Swing JavaBeans This section tests the candidate s knowledge of basic architecture of JavaBeans and how JBuilder uses JavaBeans. A JavaBean is a collection of one or more Java 8 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

9 classes that serves as a self-contained, reusable component. A JavaBean can be a discrete component used in building a user interface or a non-ui component such as a data module or computation engine. Refer to the Help system for complete coverage of this subject. Definition of JavaBeans Internal structure requirements of JavaBeans How to deploy JavaBeans How to use JavaBeans How to use the JavaBean Wizard Java Language/Objected Oriented Programming This section tests the candidate s knowledge of the Java programming language and features of objected oriented programming. Obviously, if you don t know the programming language, you can t use the programming tool. Everything needed to answer the questions about the language is also included in the Help system. How to exit a Java application Elements of the Java language Object Oriented Programming principles Declaring and using arrays in Java Typecasting Comparing class information Limitations of the Java language as compared to other programming languages. Method overloading Java keywords and their use Object Serialization, why it is done and how it works Synchronization and multithreading Thread classes, properties, methods and events Working with strings in Java Interfaces, their purpose and use Exception handling The Try...finally constructs Raising exceptions Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 9

10 Introspection, how, when and where it can be used Database Concepts/Data Access Techniques This section tests the candidate s knowledge of JBuilder s DataExpress Component Library, JBuilder s database tools, and JDBC. You can obtain the answers to the questions in this section from JBuilder s manual, Database Application Developer s Guide. Familiarity with using the DataExpress Component Library Thorough knowledge of the Database component Thorough knowledge of the QueryDataSet component The Query dialog, invocation, use and limitations Thorough knowledge of the Column component Functionality of the JDBC Monitor Functionality of the Database Pilot Functionality of the JDataStore Explorer Limitations of JDBC JDBC drivers, care and feeding Transaction-based processing, why and how it is done Java Virtual Machine This section tests the candidate s knowledge of the Java Virtual Machine. The JVM is an integral part of the Java environment. The information required to answer these questions can be found in a great many sources, including several dozen books. However, the JBuilder Help system documents enough of it to be able to answer the certification test questions. Garbage collection and memory management in the JVM Differences between heavyweight and lightweight components Requirements for deploying applications Determining the complete list of items in a Java package Security and the JVM 10 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

11 InternetBeans Express This section tests the candidate s knowledge of InternetBeans Express. Test questions answers for these sections can be found in JBuilder s manual, Web Application Developer s Guide. What is InternetBeans Express technology Using an IXPageProducer Servlets This section tests the candidate s knowledge of Servlets. Test questions answers for these sections can be found in JBuilder s manual, Web Application Developer s Guide. Using JBuilder s Servlet wizard Configuring JBuilder to work with a web server Using servlets with HTTP s do, get, and post methods Communication between servlets Enterprise Java Beans (EJB) This section tests the candidate s basic knowledge of Enterprise Java Beans. You can obtain the answers to the questions in this section from JBuilder s manual, Enterprise Application Developer s Guide. Deploying an EJB. Functionality of JBuilder s EJB wizards RMI & IIOP, limitations Deployment of Java Applications This section tests the candidate s knowledge regarding deploying Java applications and using JBuilder s Deployment Wizard. Functionality of JBuilder s Deployment Wizard Deploying JDBC drivers Deploying images What the JDK does and does not include Deploying JAR files Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 11

12 Running applets in web browsers. 12 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

13 Sample Questions Questions 1. Which are valid project options (select all that apply)? A) Exclude Class B) End of Line Characters C) Transform Trace Options D) Smart Step Settings 2. How can you undock the structure pane? A) Select Tools IDE Options and on the Display tab select the Undock panes option. B) Right click the mouse, when you are over the structure pane, and select Undock. C) You can t undock the structure pane from the AppBrowser 3. How can you stop a JTextArea object named jtextarea2 from accepting focus? A) jtextarea2.setfocus(false); B) jtextarea2.setenabled(false); C) jtextarea2.setcursor(false); D) You cannot stop a jtextarea2 from accepting focus. 4. How do you disable a jmenuitem object using JBuilder s menu designer (select all that apply)? A) In the Inspector, set the enabled property for the menu item to False. B) Right click on an existing menu item and select Disable C) Click on the Enable/Disable tool on the menu designer toolbar. D) The menu designer does not surface the jmenuitem enable property. Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 13

14 5. What are the differences between the jpr and jpx project file types (select all that apply)? A) A jpr project file is not readable with a text editor B) A jpx file is a binary file C) A jpx file is a XML file D) A jpx file type is required in order to use CVS with the project E) Other than the extension, there are no differences between the two file types. 6. Suppose there is a component Foo on the component palette. In order for JBuilder to display Foo s properties in the Inspector, there must be an associated FooBeanInfo class? A) True B) False 7. Which of the following are event listeners of the QueryDataset class (select all that apply)? A) open B) close C) access D) sort E) navigation 8. Which class would you use to store a string constant? A) StringArray class B) StringBuffer class C) String class D) None of the above. 9. A sealed package within a JAR file (select all that apply) A) specifies that all classes defined in that package file must originate from the same JAR. 14 Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved.

15 B) is encrypted. C) is not sealed unless the JAR that contains it is also sealed. D) is specified via the manifest attribute, Sealed. 10. Which of the following statements best describe the term synchronization as it applies to Java? A) A method for persisting objects. B) A method for managing the order that properties and data are accessed in order to maintain data integrity in a multi-threaded application. C) A method for maintaining database cursors in a given relationship. D) A method for restarting a thread in a multi-threaded application. Answers 1. A) Exclude Class, B) End of Line Characters, and, D) Smart Step Settings. C) Transform Trace Options, is an IDE option. 2. C) You can t undock the structure pane from the AppBrowser. None of the AppBrowser panes can be undocked. 3. B) jtextarea2.setenabled(false); 4. A) In the Inspector, set the enabled property for the menu item to False, B) Right-click on an existing menu item and select Disable, and C) Click on the Enable/Disable tool on the menu designer toolbar. 5. C) jpx file is a XML file, and D) A jpx file type is required in order to use CVS with the project. 6. False. Both introspection and reflection are employed to retrieve and evaluate a JavaBean s properties. 7. A) open, C) access, and E) navigation 8. B) StringBuffer class 9. A) specifies that all classes defined in that package file must originate from the same JAR, and D) is specified via the manifest attribute, Sealed. 10. B) A method for managing the order that properties and data are accessed in order to maintain data integrity in a multi-threaded application. Borland JBuilder Certification Study Guide. Copyright 2002 Borland Software Corporation. All Rights Reserved. 15