1Z0-809: Java SE 8 Programmer II

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1Z0-809: Java SE 8 Programmer II

1Z0-809: Java SE 8 Programmer II

Dit examen is onderdeel van de Oracle Certified Professional certificering.

Trainingen

Exameneisen

Java Class Design

  • Implement encapsulation
  • Implement inheritance including visibility modifiers and composition
  • Implement polymorphism
  • Override hashCode, equals and toString methods form 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 for Each methods of Steams and List
  • Describe Stream interface and Stream pipeline
  • Filter a collection by using labda expressions
  • Use method references with Steams
  • 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 functionals interfaces
  • Develop code that uses binary versions of functionsl 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 collections using the collect method and group/partition data using the Collectors class
  • Use flatMap() mehtods 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 form 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 consule
  • Use BufferedReader, BufferedWriter, File, FileReader, FileWriter, FileInputStream, FileOutputStream, ObjectOutputStream, ObjectInputStream and PrintWriter in the java.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, movey, 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 keywork 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 inclusing 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
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