We are offering almost 400 UNIQUE practice questions for Java SE 11 Programmer II [1Z0-816] Exam. Unlike others, We offer details explanation to each and every questions that will help you to understand the question. Our mock exam software can be accessed online and 100% accessible to mobile devices. New 400 questions added in Jan 2020. 100% money back guarantee (Unconditional, we assure that you will be satisfied with our services and pass the exam. Do leave us a question we will happy to answer your queries during the course. 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 Use jdeps to determine dependencies and identify ways 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 uses 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 mutability Securely constructing sensitive objects Secure Serialization and Deserialization Localization Use Locale class Use resource bundles Format messages, dates, and numbers with Java

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