Oracle 1Z0-819 : Java SE 11 Developer

1Z0-819 real exams

Exam Code: 1Z0-819

Exam Name: Java SE 11 Developer

Updated: Sep 29, 2026

Q & A: 297 Questions and Answers

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About Oracle 1Z0-819 Exam

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:

  • 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
  • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
  • Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
  • Use a Java array and List, Set, Map and Deque collections, including convenience methods
  • Sort collections and arrays using Comparator and Comparable interfaces
  • Use generics, including wildcards
  • Use Java Streams to filter, transform and process data

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:

  • Understand variable scopes, apply encapsulation and make objects immutable
  • Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
  • Create and use enumerations
  • Create and use subclasses and superclasses, including abstract classes
  • 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 interfaces, identify functional interfaces, and utilize private, static, and default methods
  • Secure resource access including filesystems, manage policies and execute privileged code
  • Utilize polymorphism and casting to call methods, differentiate object type versus reference type

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For more info read reference:

1Z0-006 Official Certification Site Oracle Cloud Learning Resources

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

How to Prepare For Java SE 11 Developer Exam Number: 1Z0-819

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

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

1Z0-006 exam is for those that have completed the Database Foundations, Database Design and Programming with SQL (Oracle Academy training), Oracle Database 12c Administration Workshop or Oracle Database Introduction to SQL training. Passing this exam gives the certification credential demonstrating your understanding of the different types of database models and components. And, you will enhance knowledge of database components, concepts and design, implementation of business roles, SQL language and queries, and ERD modeling and languages to manage data and transactions.

The Java SE 11 Developer Exam Number: 1Z0-819 is recommended for the following candidates who have:

  • Be a professional programmer with Java experience
  • Desirable to have completed some or all of my Java Masterclass
  • Preferably have completed all or part of my Java Masterclass here on Udemy (or another Java course)
  • Have a desire to get Java certified and earn more money
  • Exposure to the Java programming language

Becoming Java certified is a great way to help improve your career options with more job opportunities and more pay. That's because Oracle's Java certification program, unlike many other certifications out there, has real value in the industry. One of the main reasons is that it's an official Oracle certification, but second, the exam is quite difficult to pass. Employers see programmers who are Java certified as more valuable than programmers who are not certified. So it's totally worth getting Java certified to take advantage of this.

ORACLE 1Z0-006 practice exams and ORACLE 1Z0-006 practice exams are designed specifically for candidates to gain an uperhand on experience and knowledge to get through this exam.

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Oracle 1Z0-819 Exam Syllabus Topics:

SectionObjectives
Topic 1: JDBC and Database Connectivity- Database access
  • 1. JDBC API usage
    • 2. SQL execution from Java
      Topic 2: Java I/O and NIO- File handling
      • 1. FileReader and FileWriter
        • 2. NIO file APIs
          Topic 3: Java Class Design- Polymorphism
          • 1. Method overriding
            • 2. Dynamic binding
              - Encapsulation and Inheritance
              • 1. Inheritance hierarchies
                • 2. Class structure and modifiers
                  Topic 4: Functional Programming- Lambda Expressions
                  • 1. Lambda syntax and usage
                    • 2. Functional interfaces
                      Topic 5: Streams API- Stream operations
                      • 1. Collectors
                        • 2. Intermediate and terminal operations
                          Topic 6: Concurrency- Multithreading
                          • 1. Executor framework
                            • 2. Thread lifecycle
                              Topic 7: Generics and Collections- Java Collections Framework
                              • 1. List, Set, Map interfaces
                                • 2. Sorting and searching
                                  - Generics
                                  • 1. Generic classes and methods
                                    • 2. Wildcards
                                      Topic 8: Exception Handling- Error handling in Java
                                      • 1. Try-catch-finally blocks
                                        • 2. Checked and unchecked exceptions

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