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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:

Handle text using String and StringBuilder classes
Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
Use local variable type inference, including as lambda parameters

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:

Create, apply, and process annotations
Declare, use, and expose modules, including the use of services
Create and use subclasses and superclasses, including abstract classes
Connect to and perform database SQL operations, process query results using JDBC API Annotations
Create and use enumerations
Define and use fields and methods, including instance, static and overloaded methods
Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
Implement serialization and deserialization techniques on Java objects
Deploy and execute modular applications, including automatic modules
Handle file system objects using java.nio.file API
Read and write console and file data using I/O Streams
Initialize objects and their members using instance and static initialiser statements and constructors
Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
Understand variable scopes, apply encapsulation and make objects immutable
Utilize polymorphism and casting to call methods, differentiate object type versus reference type

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

Oracle 1Z0-819 Exam Syllabus Topics:

Section	Objectives
Java Class Design	- Polymorphism 1. Dynamic binding 2. Method overriding - Encapsulation and Inheritance 1. Inheritance hierarchies 2. Class structure and modifiers
Streams API	- Stream operations 1. Collectors 2. Intermediate and terminal operations
Java I/O and NIO	- File handling 1. NIO file APIs 2. FileReader and FileWriter
JDBC and Database Connectivity	- Database access 1. JDBC API usage 2. SQL execution from Java
Generics and Collections	- Generics 1. Generic classes and methods 2. Wildcards - Java Collections Framework 1. List, Set, Map interfaces 2. Sorting and searching
Exception Handling	- Error handling in Java 1. Checked and unchecked exceptions 2. Try-catch-finally blocks
Functional Programming	- Lambda Expressions 1. Functional interfaces 2. Lambda syntax and usage
Concurrency	- Multithreading 1. Executor framework 2. Thread lifecycle