Java Certification : OCP (1Z0-819) Exam Simulation [2023]-P1

Are you ready to pass OCP- Java SE 11  certification and prove your competency to recruiters and employers alike?

We have 22 practices with > 1000 questions divide to 4 courses

Exam Curriculum:

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

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

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

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

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

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

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

Practice tests are randomized to give a real examination feel. All topics listed above are divided appropriately in 6 tests. Questions are designed based on real examination questions in terms of pattern and complexity. All Exam topics and sub-topics are covered.

Explanation of all the correct answers is also provided for reference and understanding. Relevant hints and how to approach a question in real examination setting is also provided in explanation.

Successful completion of all the tests will boost your confidence to attempt Oracle Certified Professional -Java SE 11 examination.

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

NOTE: Each practice test of this course contains questions on all the exam topics, similar to what is expected in real exam. But if you prefer to solve topic-wise questions, then enroll in my other course titled "Java Certification - OCP (1Z0-819) Topic-wise Tests [2023]", which contains the same questions arranged in topic-wise manner.