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Understanding Modules

• Describe how a modular project is compiled and run
• Describe the Modular JDK
• Declare modules and enable access between modules

Migration to a Modular Application

• Use jdeps to determine dependencies and identify the way to address the cyclic dependencies
• Migrate the application developed using a Java version before SE 9 to SE 11 including top-down and bottom-up migration, splitting a Java SE 8 application into modules for migration

Services in a Modular Application

• Design a service type, load services using ServiceLoader, check for dependencies of the services including consumer and provider modules
• Describe the components of Services including directives

Local Variable Type Inference

• Use local variable type inference
• Create and use lambda expressions with local variable type inferred parameters

Java Interfaces

• Create and use methods in interfaces
• Define and write functional interfaces

Lambda Expressions

• Create and use lambda expressions
• Use built-in functional interfaces including Predicate, Consumer, Function, and Supplier
• Use lambda expressions and method references
• Use primitive and binary variations of base interfaces of java.util.function package

Lambda Operations on Streams

• Perform calculations using count, max, min, average, and sum stream operations
• Search stream data using search findFirst, finding, any match, all match, and non-match methods
• Use the Optional class
• Extract stream data using a map, peek, and flatMap methods
• Sort a collection using lambda expressions
• Use Collectors with streams, including the groupingBy and partitioningBy operation

Parallel Streams

• Implement decomposition and reduction with streams
• Develop the code that uses parallel streams

Java File I/O (NIO.2)

• Use Stream API with Files
• Use Files class to check, delete, copy, or move a file or directory
• Use the Path interface to operate on file and directory paths

Language Enhancements

Use the try-with-resources construct Develop code that handles multiple Exception types in a single catch block

How to Prepare For Oracle 1Z0-817: Upgrade OCP Java 6, 7 & 8 to Java SE 11 Developer Exam

Preparation Guide for Oracle 1Z0-817: Upgrade OCP Java 6, 7 & 8 to Java SE 11 Developer Exam

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Reference: https://education.oracle.com/upgrade-ocp-java-6-7-8-to-java-se-11-developer/pexam_1Z0-817

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Oracle 1Z0-817 Exam Syllabus Topics: