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Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819

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

• Working with Arrays and Collections
• Database Applications with JDBC
• Java I/O API
• Java Object-Oriented Approach
• Working with Java data types
• Annotations
• Java Platform Module System

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:

• Utilize polymorphism and casting to call methods, differentiate object type versus reference type
• Understand variable scopes, apply encapsulation and make objects immutable
• Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
• Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
• Define and use fields and methods, including instance, static and overloaded methods
• Initialize objects and their members using instance and static initialiser statements and constructors
• Create and use subclasses and superclasses, including abstract classes
• Create and use enumerations
• Secure resource access including filesystems, manage policies and execute privileged code
• Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)

Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913

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

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