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Product Description

Sun Certified Programmer for the Java Platform, Standard Edition 6

The Sun Certified Programmer for Java Platform, Standard Edition 6 certification exam is for programmers experienced using the Java programming language. Achieving this certification provides clear evidence that a programmer understands the basic syntax and structure of the Java programming language and can create Java technology applications that run on server and desktop systems using Java SE 6.

Exams purchased on the Web site may only be used in the US. If you reside outside the US please select a country to inquire about products delivered in your country. Once exam vouchers are purchased you have up to one year from the date of purchase to use it. Each voucher is valid for one exam and may only be used at an Authorized Prometric Testing Center in the country for which it was purchased. Please be aware that exam vouchers are nonrefundable for any reason.

Details

• Delivered at: Delivered at: Authorized Worldwide Prometric Testing Centers
  
• Prerequisites: None
  
• Other exams/assignments required for this certification: Other exams/assignments required for this certification: None
  
• Exam type: Exam type: Multiple choice and drag and drop
  
• Number of questions: 72
  
• Pass score: 65% (47 of 72 questions)
  
• Time limit: 210 minutes

Assignment Objectives

Exam Objectives

• Develop code that declares classes (including abstract and all forms of nested classes), interfaces, and enums, and includes the appropriate use of package and import statements (including static imports).
  
• Develop code that declares an interface. Develop code that implements or extends one or more interfaces. Develop code that declares an abstract class. Develop code that extends an abstract class.
  
• Develop code that declares, initializes, and uses primitives, arrays, enums, and objects as static, instance, and local variables. Also, use legal identifiers for variable names.
  
• Develop code that declares both static and non-static methods, and - if appropriate - use method names that adhere to the JavaBeans naming standards. Also develop code that declares and uses a variable-length argument list.
  
• Given a code example, determine if a method is correctly overriding or overloading another method, and identify legal return values (including covariant returns), for the method.
  
• Given a set of classes and superclasses, develop constructors for one or more of the classes. Given a class declaration, determine if a default constructor will be created, and if so, determine the behavior of that constructor. Given a nested or non-nested class listing, write code to instantiate the class.

• Develop code that implements an if or switch statement; and identify legal argument types for these statements.
  
• Develop code that implements all forms of loops and iterators, including the use of for, the enhanced for loop (for-each), do, while, labels, break, and continue; and explain the values taken by loop counter variables during and after loop execution.
  
• Develop code that makes use of assertions, and distinguish appropriate from inappropriate uses of assertions.
  
• Develop code that makes use of exceptions and exception handling clauses (try, catch, finally), and declares methods and overriding methods that throw exceptions.
  
• Recognize the effect of an exception arising at a specified point in a code fragment. Note that the exception may be a runtime exception, a checked exception, or an error.
  
• Recognize situations that will result in any of the following being thrown: ArrayIndexOutOfBoundsException,ClassCastException, IllegalArgumentException, IllegalStateException, NullPointerException, NumberFormatException, AssertionError, ExceptionInInitializerError, StackOverflowError or NoClassDefFoundError. Understand which of these are thrown by the virtual machine and recognize situations in which others should be thrown programatically.

• Develop code that uses the primitive wrapper classes (such as Boolean, Character, Double, Integer, etc.), and/or autoboxing & unboxing. Discuss the differences between the String, StringBuilder, and StringBuffer classes.
  
• Given a scenario involving navigating file systems, reading from files, writing to files, or interacting with the user, develop the correct solution using the following classes (sometimes in combination), from java.io: BufferedReader, BufferedWriter, File, FileReader, FileWriter, PrintWriter, and Console.
  
• Develop code that serializes and/or de-serializes objects using the following APIs from java.io: DataInputStream, DataOutputStream, FileInputStream, FileOutputStream, ObjectInputStream, ObjectOutputStream and Serializable.
  
• Use standard J2SE APIs in the java.text package to correctly format or parse dates, numbers, and currency values for a specific locale; and, given a scenario, determine the appropriate methods to use if you want to use the default locale or a specific locale. Describe the purpose and use of the java.util.Locale class.
  
• Write code that uses standard J2SE APIs in the java.util and java.util.regex packages to format or parse strings or streams. For strings, write code that uses the Pattern and Matcher classes and the String.split method. Recognize and use regular expression patterns for matching (limited to: . (dot), * (star), + (plus), ?, \d, \s, \w, [], ()). The use of *, +, and ? will be limited to greedy quantifiers, and the parenthesis operator will only be used as a grouping mechanism, not for capturing content during matching. For streams, write code using the Formatter and Scanner classes and the PrintWriter.format/printf methods. Recognize and use formatting parameters (limited to: %b, %c, %d, %f, %s) in format strings.

• Write code to define, instantiate, and start new threads using both java.lang.Thread and java.lang.Runnable.
  
• Recognize the states in which a thread can exist, and identify ways in which a thread can transition from one state to another.
  
• Given a scenario, write code that makes appropriate use of object locking to protect static or instance variables from concurrent access problems.
  
• Given a scenario, write code that makes appropriate use of wait, notify, or notifyAll.

• Develop code that implements tight encapsulation, loose coupling, and high cohesion in classes, and describe the benefits.
  
• Given a scenario, develop code that demonstrates the use of polymorphism. Further, determine when casting will be necessary and recognize compiler vs. runtime errors related to object reference casting.
  
• Explain the effect of modifiers on inheritance with respect to constructors, instance or static variables, and instance or static methods.
  
• Given a scenario, develop code that declares and/or invokes overridden or overloaded methods and code that declares and/or invokes superclass, or overloaded constructors.
  
• Develop code that implements “is-a” and/or “has-a” relationships.

• Given a design scenario, determine which collection classes and/or interfaces should be used to properly implement that design, including the use of the Comparable interface.
  
• Distinguish between correct and incorrect overrides of corresponding hashCode and equals methods, and explain the difference between == and the equals method.
  
• Write code that uses the generic versions of the Collections API, in particular, the Set, List, and Map interfaces and implementation classes. Recognize the limitations of the non-generic Collections API and how to refactor code to use the generic versions. Write code that uses the NavigableSet and NavigableMap interfaces.
  
• Develop code that makes proper use of type parameters in class/interface declarations, instance variables, method arguments, and return types; and write generic methods or methods that make use of wildcard types and understand the similarities and differences between these two approaches.
  
• Use capabilities in the java.util package to write code to manipulate a list by sorting, performing a binary search, or converting the list to an array. Use capabilities in the java.util package to write code to manipulate an array by sorting, performing a binary search, or converting the array to a list. Use the java.util.Comparator and java.lang.Comparable interfaces to affect the sorting of lists and arrays. Furthermore, recognize the effect of the “natural ordering” of primitive wrapper classes and java.lang.String on sorting.

• Given a code example and a scenario, write code that uses the appropriate access modifiers, package declarations, and import statements to interact with (through access or inheritance) the code in the example.
  
• Given an example of a class and a command-line, determine the expected runtime behavior.
  
• Determine the effect upon object references and primitive values when they are passed into methods that perform assignments or other modifying operations on the parameters.
  
• Given a code example, recognize the point at which an object becomes eligible for garbage collection, determine what is and is not guaranteed by the garbage collection system, and recognize the behaviors of the Object.finalize() method.
  
• Given the fully-qualified name of a class that is deployed inside and/or outside a JAR file, construct the appropriate directory structure for that class. Given a code example and a classpath, determine whether the classpath will allow the code to compile successfully.
  
• Write code that correctly applies the appropriate operators including assignment operators (limited to: =, +=, -=), arithmetic operators (limited to: +, -, *, /, %, ++, –), relational operators (limited to: <, <=, >, >=, ==, !=), the instanceof operator, logical operators (limited to: &, |, ^, !, &&, ||), and the conditional operator ( ? : ), to produce a desired result. Write code that determines the equality of two objects or two primitives.

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Becoming an Oracle Certified Professional
Whether you’re an Oracle newbie or a self-proclaimed guru, getting the Oracle Certification seal of approval may still be your key to staying afloat in a tough economy, according to some IT educators. So why not begin your journey today? This fast guide is designed to give you expert technical advice on where to begin your Oracle certification studies, passing the final exam and putting your certification into effect in the workplace.What official Oracle Certification?tracks are available?
About Oracle Certification?exams
Oracle is a leading provider of Relational Database Management (RDBMS) solutions to organizations worldwide. Oracle has introduced a wide range of certification programs for entry level to experienced professionals and for domains ranging from database administration, database management to programming, web development and other advanced technologies. These programs ensure whether or not information technology professionals have the necessary skills to successfully implement business solutions using Oracle Technology.
Job Roles for Oracle Certified Professionals
Oracle Certification prepare you for different job roles in database management, administration and development fields. Some of the job roles that are suitable for Oracle Certified Professionals are:

??? * For Database Management and Administration: Database Administrator, Database Analyst, and Database Developer. Related certification are OCA 9i DBA, OCP 9i DBA, OCA DBA10g and OCP 10g DBA.
??? * For Programming and Web Development: Database Developer, Applications Developer, Web Developer and Database Analyst. Related certification is OCA PL/SQL Developer.

Training for Oracle certifications
Oracle Certification program offers entry level to advanced certification on the Oracle products and technologies. Oracle certification exam consist of multiple-choice questions related to the specific technology. You should choose a training resource that helps you practice on the actual format of the Oracle Certification exam. Practice is the key to success and you should take plenty of practice exams for your preparations. You should also read study guides and technical articles to get a thorough understanding of the Oracle products and technologies. Your success depends on how efficiently you have prepared for these exams.

Oracle Corporation Offers the following Oracle Certification Tracks:

??? * Oracle Certified Associate (OCA)

Enables one to act as a junior team member working with database administrators or application developers.

??? * Oracle Certified Professional (OCP)

OCP candidates have proven skills for managing a large scale database or developing robust applications that are deployed enterprise-wide.

??? * Oracle Certified Master (OCM)

The highest level credential you can earn in the Oracle Certification Program. These people are senior level members of IT departments and are responsible for handling mission critical database systems and applications.

??? * Internet Application Developer (Release 6 or 6i)

Oracle developers using Oracle iDS (Internet Developer Suite) Forms and Reports.

??? * Oracle Java Developer (JDEV)

Developers using the Java platform. Oracle participates in the multi-vendor jCert Initiative.

PS: The Oracle Database Operator (DBO) track was discontinued on March 31, 2002.
[edit]
How hard are the exams?

That depends. If you know your stuff, they are quite easy. If you don’t, well, they are quite hard. The exams test stuff you really need to know. However, they do add some trick questions as well. Nevertheless, these should not scare you off as they don’t count that much anyway.
[edit]
What training is required before one can take an exam?

From Oracle 9i Oracle changed the requirements for some certification tracks to include training classes:

OCP - You need to attend one hands-on training class at Oracle Certification . See Oracle’s web site for a list of courses.

OCM - You need to attend two advanced training classes at Oracle University. See Oracle’s website for a list of courses.

All other tracks - Generally no courses required. It might be a good idea to attend some relevant courses before taking an exam, but poor people like me must often do without it.

See section: info about training events/opportunities.
[edit]
How do I prepare for the exams?

First step is to go to Oracle Certification and read the list of objectives per exam. There aren’t any questions that don’t fit one of those objectives. Make sure you know what’s on those objectives.

Note that all the questions are compiled from the official Oracle training guides one gets when attending an Oracle class (Instructor Led Course). It is advisable to get these guides by attending the Oracle training classes before taking any of the exams.

Lastly, use the software and practice. Don’t just read about a topic - implement it; break it; then fix it. There’s no better way to learn stuff than to fix something you broke yourself.
[edit]
Where can one take these exams?

Testing for the Oracle exams is conducted at authorized Prometric testing centers worldwide. Use their on-line Test Center Locator to find the test center closest to you.
[edit]
What is the format of the Oracle Certification exams?

All exams are closed book exams. No written materials or notebook computers will be allowed in the testing area. All questions are either multiple choice, fill in the missing word or match these against those.

Testing is conducted by Thompson Prometric.

When an English test is delivered in a non-English speaking country, the test time might vary from what you see on this site.
[edit]
How are exams scored?

It’s not like school where you have to get 60% or whatever. Previously all exam were scored on a 200-800 scale, with 620 as the passing score for all exams. With this scaling system, the number of points each question was worth varied between exams, and candidates could not compare their scores across exams.

Oracle Certification? has decided to abandon the scaled scores and instead report only the candidates’ raw scores.
[edit]
Can one (during an exam) skip questions and answer them later in the exam?

Yes, you may mark certain question that you feel are difficult and review them at the end of the exam. After you clicked the submit button, the tool will tell you that you have marked questions and allow you to jump to them. Both marked and unmarked questions will be scored when finally submitting the exam.
[edit]
Is it OK to guess answers or are these tests marked negatively?

The Oracle Certification exams are not scored negatively. This means that you can safely guess answers as no points will be deducted for incorrect answers.

It is best to check if you have actually answered ALL questions before completing the exam. If you are running short on time, just click any answer and move on. This way you will at least have a chance to get some of them right.
[edit]
Do I have to pass one exam before I can write the next one?

No. You can write any exam in any order. You could even write Admin II, Admin I, SQL in that order if you wanted. They don’t follow on one after another, and you get your certificate when you pass all required exams.
[edit]
What happens when one fails an exam?

If you fail a test you can re-write it after a minimum of 14 days, provided you do not write a particular test more than three times in a twelve-month period.

After each exam you will receive some diagnostic feedback with the test score report indicating the areas that need further study.

Failing one exam doesn’t affect any other exams though. If you fail SQL you can still write Admin I any time you want for example.

There is no discount price for re-taking an exam. The fee is the same as for the initial exam.
[edit]
Where can one get sample questions for the Oracle exams?

??? * Oracle offers a FREE downloadable assessment test on their Web site at http://www.oracle.com/education/certification.

??? * Buy practice tests from Self Test Software

??? * A sample test is provided as part of the book Advanced ORACLE Tuning & Administration chapter 15. The book is published by Oracle Press (ISBN 0-07-882241-6). Authors: Aronoff, Loney, and Sonawalla.

??? * Get the book: Oracle DBA Exam Cram: Proven Techniques to Pass the Oracle Certified Professional Exam by Michael R. Ault (ISBN: 1576102629)

??? * Oracle FAQ On-line Quizzes - Questions are not directly related to OCP but can be used to test your proficiency in a certain area.