This course has a practice test of 50 questions that will help you prepare for the Java 11 Certification Exam. To get this certification, it is required to gain a broad knowledge of the Java programming language, coding practices and utilization of new features incorporated into Java SE 11. This course helps you get practice in all certification exam topics like object-orientation, functional programming through lambda expressions and streams, and modularity. To get certified, a thorough and broad knowledge of the Java programming language, coding practices and utilization of new features incorporated into Java SE 11 is needed. The practice test helps the candidate acquire a deep understanding of object-orientation, functional programming through lambda expressions and streams, and modularity. About the Actual ExamExam number and titler: 1Z0-819: Java SE 11 DeveloperExam Price: $245Format: Multiple ChoiceNumber of Questions: 50Duration: 90 minutesPassing score: 68%About the Practice ExamVery similar to the actual examQuestions with a complete explanationFormat: Multiple ChoiceNumber of Questions: 1 practice tests, 50 questionsDuration: 90 minutesPassing score: 68%This practice exam covers all the objectives/topics of the Java SE 11 Developer exam: Working with Java data typesUse primitives and wrapper classes, including, operators, parentheses, type promotion, and castingHandle text using String and StringBuilder classesUse local variable type inference, including lambda parametersControlling Program FlowCreate and use loops, if/else, and switch statementsJava Object-Oriented ApproachDeclare and instantiate Java objects including nested class objects, and explain objects’ lifecycles (including creation, dereferencing by reassignment, and garbage collection)Define and use fields and methods, including instance, static and overloaded methodsInitialize objects and their members using instance and static initializer statements and constructorsUnderstand variable scopes, apply encapsulation and make objects immutableCreate and use subclasses and superclasses, including abstract classesUtilize polymorphism and casting to call methods, differentiate object type versus reference typeCreate and use interfaces, identify functional interfaces, and utilize private, static, and default methodsCreate and use enumerationsException HandlingHandle exceptions using try/catch/finally clauses, try-with-resource, and multi-catch statementsCreate and use custom exceptionsWorking with Arrays and CollectionsUse generics, including wildcardsUse a Java array and List, Set, Map, and Deque collections, including convenience methodsSort collections and arrays using Comparator and Comparable interfacesWorking with Streams and Lambda expressionsImplement functional interfaces using lambda expressions, including interfaces from the java. util. function packageUse Java Streams to filter, transform and process dataPerform decomposition and reduction, including grouping and partitioning on sequential and parallel streamsJava Platform Module SystemDeploy and execute modular applications, including automatic modulesDeclare, use, and expose modules, including the use of servicesConcurrencyCreate worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java. util. concurrent APIDevelop thread-safe code, using different locking mechanisms and java. util. concurrent APIJava I/O APIRead and write console and file data using I/O StreamsImplement serialization and deserialization techniques on Java objectsHandle file system objects using java. nio. file APISecure Coding in Java SE ApplicationDevelop code that mitigates security threats such as denial of service, code injection, input validation and ensures data integritySecure resource access including filesystems, manage policies and execute privileged codeDatabase Applications with JDBCConnect to and perform database SQL operations, process query results using JDBC APILocalizationImplement Localization using Locale, resource bundles, and Java APIs to parse and format messages, dates, and numbersAnnotationsCreate, apply, and process annotations
