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:
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Use Java Streams to filter, transform and process data
- Use generics, including wildcards
- 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
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Sort collections and arrays using Comparator and Comparable interfaces
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Average Salary of Java SE 11 Developer Exam Number: 1Z0-819 Certified Professionals
The average salary is between $71k and $103k.
Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Arrays and Collections | 12-18% | - Sort and search collections and arrays - Create and manipulate arrays, lists, sets, maps, queues and deques - Use generics, wildcards and diamond notation |
| Lambda Expressions and Streams | 12-18% | - Create and use stream pipelines, including intermediate and terminal operations - Define and use functional interfaces and lambda expressions - Use Optional class and primitive type streams |
| Java I/O and NIO.2 | 8-12% | - Manage files, directories and file attributes with java.nio.file API - Read and write data using streams, readers, writers and channels - Implement serialization and deserialization |
| Exception Handling and Assertions | 8-12% | - Use assertions appropriately - Create custom exceptions and use standard exceptions - Use try-catch-finally, try-with-resources, throw and throws |
| JDBC Database Access | 5-8% | - Process result sets, manage transactions and resources - Connect to databases, execute queries and updates |
| Java Platform Module System | 8-12% | - Use automatic modules and unnamed modules - Define modules, module declarations, requires, exports, opens, uses and provides - Compile, package and run modular applications |
| Working with Java Data Types | 10-15% | - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting - Manipulate numeric values and formatting - Handle text using String, StringBuilder and StringBuffer classes |
| Concurrency | 8-12% | - Use synchronization, locks, atomic variables and concurrent collections - Use parallel streams and CompletableFuture - Create and manage threads, use ExecutorService, Callable and Future |
| Java Object-Oriented Approach | 15-20% | - Overload and override methods, use constructors and initializers - Use local variable type inference - Declare and instantiate classes, interfaces, abstract classes and nested classes - Apply encapsulation, inheritance, polymorphism and abstraction |
| Secure Coding and Localization | 5-8% | - Apply secure coding practices, input validation and data protection - Use Locale, ResourceBundle and formatting APIs for internationalization |



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