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For more info read reference:
1Z0-006 Official Certification Site
Oracle Cloud Learning Resources
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What is Java SE 11 Developer Exam Number: 1Z0-819 Certification Exam and Retake policy
Oracle Cloud Certification credentials are only valid for a period of 18 months from the date you earn the credential. The certification will become inactive at the end of 18 months. However, for Oracle candidates, it is necessary to hold an active certification in order to have access to various certification benefits including, using Oracle certification logos, certificates, scoring reports, digital badges, and certification verification.
To stay current, candidates have to re-certify themselves with the latest version of the exam. Oracle Cloud Certifications include various titles with levels that are Oracle Certified Associate, Specialist, and Professional. Moreover, the Oracle Cloud Certifications are updated continuously throughout the year for keeping current with major product and service releases and re-released on an annual basis with a new title.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Objectives |
| Java I/O and NIO | - File handling
- 1. FileReader and FileWriter
- 2. NIO file APIs
|
| Generics and Collections | - Java Collections Framework
- 1. List, Set, Map interfaces
- 2. Sorting and searching
- Generics
- 1. Generic classes and methods
- 2. Wildcards
|
| JDBC and Database Connectivity | - Database access
- 1. JDBC API usage
- 2. SQL execution from Java
|
| Exception Handling | - Error handling in Java
- 1. Checked and unchecked exceptions
- 2. Try-catch-finally blocks
|
| Concurrency | - Multithreading
- 1. Executor framework
- 2. Thread lifecycle
|
| Java Class Design | - Encapsulation and Inheritance
- 1. Inheritance hierarchies
- 2. Class structure and modifiers
- Polymorphism
- 1. Dynamic binding
- 2. Method overriding
|
| Functional Programming | - Lambda Expressions
- 1. Lambda syntax and usage
- 2. Functional interfaces
|
| Streams API | - Stream operations
- 1. Collectors
- 2. Intermediate and terminal operations
|