OCP - Oracle Certified Programmer Java England, United Kingdom

Course details

• 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

• 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

• Create and use a generic class
• Create and use ArrayList, TreeSet, TreeMap, and ArrayDeque objects
• Use and 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

• Use the built-in interfaces included in the 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

• 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

• 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

• 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

• Read and write data from the console
• Use BufferedReader, BufferedWriter, File, FileReader, FileWriter,
• FileInputStream, FileOutputStream, ObjectOutputStream, ObjectInputStream, and PrintWriter in the package.

• 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

• 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 package to control the order of thread execution
• Use collections and classes including CyclicBarrier and CopyOnWriteArrayList
• Use parallel Fork/Join Framework
• Use parallel Streams including reduction, decomposition, merging processes, pipelines, and performance.

• 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

• 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