Java SE 11 Programmer II



Java SE 11 Programmer II



Java SE 11 Programmer I & Java SE 11 Programmer II retire on 01-OCT-2020 and are replaced by Java SE 11 Developer

Exam Number: 1Z0-816
Exam Product Version: Java SE
Exam Price: € 220,00 exkl. 20% USt
Dauer: 180 Minuten
Anzahl der Fragen: 80
Erforderliche Punktzahl: 63%
Gültig für: This exam has been written for the Java SE 11 release
Format: Multiple Choice
Das Ablegen der Java SE 11 Programmer I ist eine Voraussetzung für diese Zertifizierung!

Exam Preparation:

  • Java 11 Grundlagen
  • Fortgeschrittene Programmierung mit Java 11
  • Vorbereitungsworkshop zur Java SE 11 Developer Zertifizierung


    • Additional Information & Resources


    TOPICS

    Java Fundamentals
    • Create and use final classes
    • Create and use inner, nested and anonymous classes
    • Create and use enumerations
    Java Interfaces
    • Create and use interfaces with default methods
    • Create and use interfaces with private methods
    Functional Interface and Lambda Expressions
    • Define and write functional interfaces
    • Create and use lambda expressions including statement lambdas, local-variable for lambda parameters
    Built-in Functional Interfaces
    • Use interfaces from java.util.function package
    • Use core functional interfaces including Predicate, Consumer, Function and Supplier
    • Use primitive and binary variations of base interfaces of java.util.function package
    Migration to a Modular Application
    • Migrate the application developed using a Java version prior to SE 9 to SE 11 including top-down and bottom-up migration, splitting a Java SE 8 application into modules for migration
    • Run a modulaized application on classpath and on modulepath
    • Use jdeps to determine dependencies and identify way to address the cyclic dependencies
    Concurrency
    • Create worker threads using Runnable, Callable and use an ExecutorService to concurrently execute tasks
    • Use java.util.concurrent collections and classes including CyclicBarrier and CopyOnWriteArrayList
    • Write thread-safe code
    • Identify threading problems such as deadlocks and livelocks
    I/O (Fundamentals and NIO2)
    • Read data from and write console and file data using I/O Streams
    • Use I/O Streams to read and write files
    • Read and write objects by using serialization
    • Use Path interface to operate on file and directory paths
    • Use Files class to check, delete, copy or move a file or directory
    • Use Stream API with Files
    Database Applications with JDBC
    • Connect to databases using JDBC URLs and DriverManager
    • Use PreparedStatement to perform CRUD operations
    • Use PreparedStatement and CallableStatement APIs to perform database operations
    Annotations
    • Describe the purpose of annotations and typical usage patterns
    • Apply annotations to classes and methods
    • Describe commonly used annotations in the JDK
    • Declare custom annotations
    Exception Handling and Assertions
    • Use try-with-resources construct
    • Create and use custom exception classes
    • Test invariants by using assertions
    Generics and Collections
    • Use wrapper classes, auto-boxing and auto-unboxing
    • Create and use generic classes, methods with diamond notation and wildcards
    • Describe Collections Framework and use key collection interfaces
    • Use Comparator and Comparable interfaces
    • Create and use convenience methods for collections
    Java Stream API
    • Describe the Stream interface and pipelines
    • Use lambda expressions and method references
    Lambda Operations on Streams
    • Extract stream data using map, peek and flatMap methods
    • Search stream data using search findFirst, findAny, anyMatch, allMatch and noneMatch methods
    • Use Optional class
    • Perform calculations using count, max, min, average and sum stream operations
    • Sort a collection using lambda expressions
    • Use Collectors with streams, including the groupingBy and partitioningBy operation
    Services in a Modular Application
    • Describe the components of Services including directives
    • Design a service type, load services using ServiceLoader, check for dependencies of the services including consumer and provider modules
    Parallel Streams
    • Develop the code that use parallel streams
    • Implement decomposition and reduction with streams
    Secure Coding in Java SE Application
    • Prevent Denial of Service in Java applications
    • Secure confidential information in Java application
    • Implement Data integrity guidelines- injections and inclusion and input validation
    • Prevent external attack of the code by limiting Accessibility and Extensibility, properly handling input validation, and mutablity
    • Secure constructing sensitive objects
    • Secure Serialization and Deserialization
    Localization
    • Use Locale class
    • Use resource bundles
    • Format messages, dates, and numbers with Java