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• Implement serialization and deserialization techniques on Java objects
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• Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
• Connect to and perform database SQL operations, process query results using JDBC API Annotations
• Declare 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 methods
• Create and use subclasses and superclasses, including abstract classes
• Understand variable scopes, apply encapsulation and make objects immutable

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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819

The following will be discussed in the ORACLE 1Z0-006 exam dumps pdf:

• Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
• Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
• Use Java Streams to filter, transform and process data
• Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
• Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
• Use generics, including wildcards
• Sort collections and arrays using Comparator and Comparable interfaces
• Use a Java array and List, Set, Map and Deque collections, including convenience methods

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