Java Certification - OCP (1Z0-809) Topic-wise Tests [2025]

Multiple choice questions covering all the exam objectives of Oracle Certified Professional, Java SE 8 Programmer II

Are you ready to pass OCP- Java SE 8 Programmer II certification and prove your competency to recruiters and employers alike?

As of 27th Jan 2025, the practice test questions have helped 124 students to pass the OCP Certification (1Z0-809) exam. Are you ready to join them and take a leap in your Java programming career?

OCP - Java SE 8 Programmer II - Exam Information: [NEW FORMAT effective September 1, 2022]

• Exam Code: 1Z0-809

• Duration: 120 minutes

• Questions #: 68 (Multiple Choice / Multiple Select)

• Passing score: 65% 

  
  

This course covers all the EXAM topics in orderly fashion, which helps students to assess their preparation for respective topic. This course can be used as a learning aid while preparing for OCP certification to test your preparation for each topic while preparing for that topic. 

Topic-wise questions helps in identifying week areas thus more focus can be given to those specific topics.

Course highlights: 1. All questions are multiple choice or multiple select questions.

2. You have around 2.4 minutes to complete each question which is more than the exam timing. 

3. This practice tests will explain in detail why the right answer is the right answer, in review phase. Understanding the explanation will help in instillation of concepts. Relevant hints and how to approach a question in real examination setting is also provided in explanation. 4. At the end of the practice exam, check your progress and review each question and sort by OCP knowledge area, correct answers, wrong answers, skipped questions and questions marked for review.

5. You can take these exams multiple times till concepts are deeply ingrained.

Course Structure:

Test 1 Covers following topics:

- Java Class Design

•  Implement encapsulation

• Implement inheritance including visibility modifiers and composition

• Implement polymorphism

• Override hashCode, equals, and toString methods from Object class

• Create and use singleton classes and immutable classes

• Develop code that uses static keyword on initialize blocks, variables, methods, and classes

- Advanced Java Class Design

• Develop code that uses abstract classes and methods

• Develop code that uses the final keyword

• Create inner classes including static inner class, local class, nested class, and anonymous inner class

• Use enumerated types including methods, and constructors in an enum type

• Develop code that declares, implements and/or extends interfaces and use the Override annotation.

• Create and use Lambda expressions

Test 2 Covers following topics:

- Generics and Collections

• Create and use a generic class

• Create and use ArrayList, TreeSet, TreeMap, and ArrayDeque objects

• Use java.util.Comparator and java.lang.Comparable interfaces

• Collections Streams and Filters

• Iterate using forEach methods of Streams and List

• Describe Stream interface and Stream pipeline

• Filter a collection by using lambda expressions

• Use method references with Streams

Test 3 Covers following topics:

- Lambda Built-in Functional Interfaces

• Use  the built-in interfaces included in the java.util.function package such as Predicate, Consumer, Function, and Supplier

• Develop code that uses primitive versions of functional interfaces

• Develop code that uses binary versions of functional interfaces

• Develop code that uses the UnaryOperator interface

- Java Stream API

• Develop code to extract data from an object using peek() and map() methods including primitive versions of the map() method

• Search for data by using search methods of the Stream classes including findFirst, findAny, anyMatch, allMatch, noneMatch

• Develop code that uses the Optional class

• Develop code that uses Stream data methods and calculation methods

• Sort a collection using Stream API

• Save results to a collection using the collect method and group/partition data using the Collectors class

• Use flatMap() methods in the Stream API

Test 4 Covers following topics:

- Exceptions and Assertions

• Use try-catch and throw statements

• Use catch, multi-catch, and finally clauses

• Use Autoclose resources with a try-with-resources statement

• Create custom exceptions and Auto-closeable resources

• Test invariants by using assertions

- Use Java SE 8 Date/Time API

• Create and manage date-based and time-based events including a combination of date and time into a single object using LocalDate, LocalTime, LocalDateTime, Instant, Period, and Duration

• Work with dates and times across timezones and manage changes resulting from daylight savings including Format date and times values

• Define and create and manage date-based and time-based events using Instant, Period, Duration, and TemporalUnit

Test 5 Covers following topics:

- Java I/O Fundamentals

• Read and write data from the console

• Use BufferedReader, BufferedWriter, File, FileReader, FileWriter, FileInputStream, FileOutputStream, ObjectOutputStream, ObjectInputStream, and PrintWriter in the IO package.

- Java File I/O (NIO.2)

• Use Path interface to operate on file and directory paths

• Use Files class to check, read, delete, copy, move, manage metadata of a file or directory

• Use Stream API with NIO.2

- Localization

• Read and set the locale by using the Locale object

• Create and read a Properties file

• Build a resource bundle for each locale and load a resource bundle in an application

Test 6 Covers following topics:

- Java Concurrency

• Create worker threads using Runnable, Callable and use an ExecutorService to concurrently execute tasks

• Identify potential threading problems among deadlock, starvation, livelock, and race conditions

• Use synchronized keyword and java.util.concurrent.atomic package to control the order of thread execution

• Use java.util.concurrent collections and classes including CyclicBarrier and CopyOnWriteArrayList

• Use parallel Fork/Join Framework

• Use parallel Streams including reduction, decomposition, merging processes, pipelines and performance.

- Building Database Applications with JDBC

• Describe the interfaces that make up the core of the JDBC API including the Driver, Connection, Statement, and ResultSet interfaces and their relationship to provider implementations

• Identify the components required to connect to a database using the DriverManager class including the JDBC URL

• Submit queries and read results from the database including creating statements, returning result sets, iterating through the results, and properly closing result sets, statements, and connections

More information on detailed curriculum and assumptions to be followed for examination are available on oracle certification page.

NOTE: If you prefer exam simulation to assess your preparation for the certification exam, then you can enroll in my other course titled "Java Certification : OCP (1Z0-809) Exam Simulation [2025]", which contains the same questions but pattern in Exam Simulation course is similar to real exam.

Disclaimer: These questions are not real examination questions / dumps. These questions  are designed based on real exams in terms of pattern and complexity to help you understand the type of expected questions from each exam objective.

Last but not the least, RELAX, and enjoy the tests!!

Copyright 2025 Udayan Khattry

All rights reserved. No part of this course may be reproduced in any form or by any electronic or mechanical means, including information storage and retrieval systems, without permission in writing from the author.