OCPJP 8 Upgrade (All Versions) Practice Tests - 1Z0-813 Mock Exams
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Inside MyExamCloud's OCPJP 8 Upgrade (All Versions) Practice Course
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Set Your Goals
Set Goals on OCPJP 8 exam topics
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Mock Exams
7 Full length mock exams
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1 Free Trial mock exam
(MyExamCloud Practice Exam)
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4
Topic Based Questions
Study mode to access topic based questions
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Answer with Explanation
Exhaustive explanation with every question
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6
Exam Report
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Who created MyExamCloud OCPJP 8 Upgrade (All Versions) Practice Tests?
The OCPJP 8 Upgrade (All Versions) Practice Questions and study notes are created by highly qualified and Java Certified experts. The Authors has created this online course covering all Java SE 8 Programmer II exam objectives based on latest Oracle's changes.
The OCPJP 8 Upgrade (All Versions) - (Oracle Certified Professional, Java SE 8 Programmer (Java SE 6 and all prior versions)) certification improves object-orientated programming and Java fundamental skills. This Java Certification also tests Java SE 8 new features such as 'Lambda expressions', 'Streams', 'Concurrenyc' and 'Date and Time API'. As Java Language Specification has been updated for these new features, the experienced Java developers also need to learn the new style of coding by preparing for this exam.
Few important changes of Java SE 8 are:
Lambda Expressions, a new language feature, has been introduced in this release. They enable you to treat functionality as a method argument, or code as data. Lambda expressions let you express instances of single-method interfaces (referred to as functional interfaces) more compactly.
Method references provide easy-to-read lambda expressions for methods that already have a name.
Default methods enable new functionality to be added to the interfaces of libraries and ensure binary compatibility with code written for older versions of those interfaces
Classes in the new java.util.stream package provide a Stream API to support functional-style operations on streams of elements. The Stream API is integrated into the Collections API, which enables bulk operations on collections, such as sequential or parallel map-reduce transformations.
Classes and interfaces have been added to the java.util.concurrent package.
Methods have been added to the java.util.concurrent.ConcurrentHashMap class to support aggregate operations based on the newly added streams facility and lambda expressions.
Classes have been added to the java.util.concurrent.atomic package to support scalable updatable variables.
Methods have been added to the java.util.concurrent.ForkJoinPool class to support a common pool.
The java.util.concurrent.locks.StampedLock class has been added to provide a capability-based lock with three modes for controlling read/write access.
Exam Process
Exam Number: 1Z0-813
Exam Title: Upgrade to Java SE 8 OCP (Java SE 6 and all prior versions)
Passing this exam, one can achieve Oracle Certified Professional, Java SE 8 Programmer (Java SE 6 and all prior versions) from Oracle. The real exam tests your OO and Java SE 8 skills by Single and Multiple choice questions.
| Number of Questions: |
60 Questions |
| Exam Duration |
130 Minutes |
| Passing Score: |
63% |
| Exam Format |
Multiple Choice
(which can have single or multiple answers) |
| Validated Against |
Java SE 8 |
| Exam Price |
Price May vary from Country to country. Refer Oracle site for latest pricing. |
The Upgrade to Java SE 8 OCP (Java SE 6 and all prior versions) exam format is multiple choice (which can have single or multiple answers).
The real exam is a computer based test provided by pearsonvue and it can be taken from any local test centers in your country.
Who can take OCPJP 8 Upgrade (All Versions)?
Set The New Java Standard With Java SE 8 OCA Certification Java SE 8 significantly changes the way you write code. Java SE 8 Certification gives you the tools to make the most of new features. The Java SE 8 Oracle Certified Associate (OCA) certification provides a foundational understanding of Java as well as programming in general. So it suits for most Java Professionals starting from beginner to expert.
- College Students
- Java Developer looking for Job
- Java Trainers
- Java Developers
OCPJP 8 Upgrade (All Versions) Sample Question
The following practice question is taken from MyExamCloud OCPJP 8 Upgrade (All Versions) Study Plan.
Given:
1. import java.util.HashMap;
2. import java.util.Map;
3. import java.util.function.BiConsumer;
4. import java.util.function.BiFunction;
5.
6. public class MyExamCloud{
7. public static void main(String[] args){
8.
9. Map numbers = new HashMap();
10. Map numbers2 = new HashMap();
11. numbers.put(1, "one");
12. numbers.put(2, "Two");
13. numbers2.put(3, "Three");
14. numbers2.put(4, "Four");
15.
16. BiFunction func = (k,v) -> v;
17.
18. BiConsumer cons = (k,v) -> numbers.merge(k, v, func);
19. numbers2.forEach(cons);
20. System.out.println(numbers);
21. }
22. }
What is the output?
Choices
Choice A:
{1=one, 2=Two, 3=Three, 4=Four}
Choice B:
{1=one, 2=Two}
Choice C:
{3=Three, 4=Four}
Choice D:
Compilation fails due to error at line 16
Choice E:
Compilation fails due to error at line 18
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Answer and Explanation:
Choice A is correct
From Java SE 1.8, we have a new method called merge that can use to merge two maps together.
default V merge(K key, V value, BiFunction remappingFunction)
If the specified key is not already associated with a value or is associated with null, associates it with the given non-null value. Otherwise, replaces the associated value with the results of the given remapping function, or removes if the result is null.
In give code we have created Function instance and a BiConsumer using that Function. At line 19, invoking forEach method by passing the BiConsumer will merge the numbers map to numbers2 map.
Exam Objective: Java File I/O (NIO.2) - Use Stream API with NIO.2
Oracle Reference: https://docs.oracle.com/javase/8/docs/api/java/util/Map.html#merge-K-V-java.util.function.BiFunction-
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54 OCPJP 8 Upgrade (All Versions) Practice Questions - Free
You can access 54 Oracle Certified Professional, Java SE 8 Programmer (Java SE 6 and all prior versions) Practice Questions, from MyExamCloud Exam Simulator
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After OCPJP 8 Upgrade (All Versions) Exam
Within 30 minutes of completing your OCPJP 8 Upgrade (All Versions) Certification exam, you will receive an email from Oracle notifying you that your exam results are available in CertView. If you have previously authenticated your CertView account, simply login and select the option to "See My New Exam Result Now."
If you have not authenticated your CertView account yet at this point, you will need to proceed with your account authentication.
Authentication requires an Oracle Single Sign On username and password and the following information from your Pearson VUE profile: email address and Oracle Testing ID. You will be taken to CertView to log in once your account has been authenticated.
Sample OCPJP 8 Upgrade (All Versions) Certificate
OCPJP 8 Upgrade (All Versions) Benefits
The reason for taking Oracle Java Certification is to differentiate general programmers from certified experts. You may get additional benefits like getting a good job, salary hike, designation changes, role changes and higher promotion.
Stand out from the millions of Java crowd. Increase your marketability with OCPJP 7 Upgrade Certification on the most used programming language in the world - Java.
Related Articles: https://www.epractizelabs.com/myexamcloud/2017/04/20/oracle-java-certification-exam-preparation/
How to register for OCPJP 8 Upgrade (All Versions)
- Step 1:Oracle :: Pearson VUEOpen this page, If you are a first time visitor then click on Create an account
- Step 2:Click on Proctored Exams
- Step 3:You will see a screen to search exam. Enter the exam code you want to give. You can get exam code details at Java Certifications MyExamCloud Exam Collections
- Step 4:You will see the exam name, fees for the exam and language of exam in the screen, Click on Schedule this exam.
- Step 5.You will see Confirm Exam Selection screen, click on the Proceed to Scheduling.
- Step 6. Now, Enter into the search box, the near by place for test center. Select the test center and click on Next.
- Step 7.Select Date and Time on which you will write your exam.
- Step 8.Check the information again, date and time. After confirming then click on the Proceed to Checkout.
- Step 9.After that you need to check the information and enter the credit card details.
Congrats, you have successfully scheduled your Java Certification exam.
OCPJP 8 Upgrade (All Versions) Topics
The real exam questions assumes the following:
Exam Topics:
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Language Enhancements
- Develop code that uses String objects in the switch statement, binary literals, and numeric literals, including underscores in literals
- Develop code that uses try-with-resources statements, including using classes that implement the AutoCloseable interface
- Develop code that handles multiple Exception types in a single catch block
- Use static and default methods of an interface including inheritance rules for a default method
Concurrency
- Use classes from the java.util.concurrent package including CyclicBarrier and CopyOnWriteArrayList with a focus on the advantages over and differences from the traditional java.util collections
- Use Lock, ReadWriteLock, and ReentrantLock classes in the java.util.concurrent.locks and java.util.concurrent.atomic packages to support lock-free thread-safe programming on single variables
- Use Executor, ExecutorService, Executors, Callable, and Future to execute tasks using thread pools
- Use the parallel Fork/Join Framework
Localization
- Describe the advantages of localizing an application and developing code that defines, reads, and sets the locale with a Locale object
- Build a resource bundle for a locale and call a resource bundle from an application
- Create and manage date- and time-based events by using LocalDate, LocalTime, LocalDateTime, Instant, Period, and Duration, including a combination of date and time in a single object
- Format dates, numbers, and currency values for localization with the NumberFormat and DateFormat classes, including number and date format patterns
- Work with dates and times across time zones and manage changes resulting from daylight savings
Java File I/O (NIO.2)
- Operate on file and directory paths by using the Paths class
- Check, delete, copy, or move a file or directory by using the Files class
- Recursively access a directory tree by using the DirectoryStream and FileVisitor interfaces
- Find a file by using the PathMatcher interface, and use Java SE 8 I/O improvements, including Files.find(), Files.walk(), and lines() methods
- Observe the changes in a directory by using the WatchService interface
Lambda
- Define and write functional interfaces and describe the interfaces of the java.util.function package
- Describe a lambda expression; refactor the code that uses an anonymous inner class to use a lambda expression; describe type inference and target typing
- Develop code that uses the built-in interfaces included in the java.util.function package, such as Function, Consumer, Supplier, UnaryOperator, Predicate, and Optional APIs, including the primitive and binary variations of the interfaces
- Develop code that uses a method reference, including refactoring a lambda expression to a method reference
Java Collections
- Develop code that uses diamond with generic declarations
- Develop code that iterates a collection, filters a collection, and sorts a collection by using lambda expressions
- Search for data by using methods, such as findFirst(), findAny(), anyMatch(), allMatch(), and noneMatch()
- Perform calculations on Java Streams by using count, max, min, average, and sum methods and save results to a collection by using the collect method and Collector class, including the averagingDouble, groupingBy, joining, partitioningBy methods
- Develop code that uses Java SE 8 collection improvements, including the Collection.removeIf(), List.replaceAll(), Map.computeIfAbsent(), and Map.computeIfPresent() methods
- Develop code that uses the merge(), flatMap(), and map() methods on Java Streams
Java Streams
- Describe the Stream interface and pipelines; create a stream by using the Arrays.stream() and IntStream.range() methods; identify the lambda operations that are lazy
- Develop code that uses parallel streams, including decomposition operation and reduction operation in streams
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