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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.
Certification Path for Java SE 11 Developer Exam Number: 1Z0-819
Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
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:
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Use Java Streams to filter, transform and process data
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Sort collections and arrays using Comparator and Comparable interfaces
- Use generics, including wildcards
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819日本語 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1Z0-819 |
| Real Exam Qty: | 50 |
| Exam Format: | Multiple Choice, Multiple Select |
| Available Languages: | English, Chinese (Traditional, Taiwan only) |
| Certificate Validity Period: | No expiration |
| Exam Price: | USD $245 |
| Exam Duration: | 90 minutes |
| Related Certifications: | Oracle Certified Professional: Java SE 17 Developer Oracle Certified Professional: Java SE 21 Developer |
| Passing Score: | 68% |
| Recommended Training: | Java SE 11 Developer Training |
| Exam Registration: | Pearson VUE Oracle University |
| Sample Questions: | Oracle 1Z0-819日本語 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended: solid Java programming knowledge and development experience |
| Official Syllabus URL: | https://education.oracle.com/product/pexam_1z0-819 |
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:
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Define and use fields and methods, including instance, static and overloaded methods
- Implement serialization and deserialization techniques on Java objects
- 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 subclasses and superclasses, including abstract classes
- Deploy and execute modular applications, including automatic modules
- Initialize objects and their members using instance and static initialiser statements and constructors
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Create, apply, and process annotations
- Declare, use, and expose modules, including the use of services
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Handle file system objects using java.nio.file API
- Create and use enumerations
- Read and write console and file data using I/O Streams
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Concurrency | 8-12% | - Create and manage threads, use ExecutorService, Callable and Future - Use synchronization, locks, atomic variables and concurrent collections - Use parallel streams and CompletableFuture |
| Topic 2: JDBC Database Access | 5-8% | - Connect to databases, execute queries and updates - Process result sets, manage transactions and resources |
| Topic 3: Java I/O and NIO.2 | 8-12% | - Implement serialization and deserialization - Read and write data using streams, readers, writers and channels - Manage files, directories and file attributes with java.nio.file API |
| Topic 4: Java Object-Oriented Approach | 15-20% | - Use local variable type inference - Overload and override methods, use constructors and initializers - Declare and instantiate classes, interfaces, abstract classes and nested classes - Apply encapsulation, inheritance, polymorphism and abstraction |
| Topic 5: Secure Coding and Localization | 5-8% | - Use Locale, ResourceBundle and formatting APIs for internationalization - Apply secure coding practices, input validation and data protection |
| Topic 6: Exception Handling and Assertions | 8-12% | - Use assertions appropriately - Use try-catch-finally, try-with-resources, throw and throws - Create custom exceptions and use standard exceptions |
| Topic 7: Java Platform Module System | 8-12% | - Use automatic modules and unnamed modules - Compile, package and run modular applications - Define modules, module declarations, requires, exports, opens, uses and provides |
| Topic 8: Working with Java Data Types | 10-15% | - Manipulate numeric values and formatting - Handle text using String, StringBuilder and StringBuffer classes - Use primitives and wrapper classes, including operators, parentheses, type promotion and casting |
| Topic 9: Arrays and Collections | 12-18% | - Create and manipulate arrays, lists, sets, maps, queues and deques - Use generics, wildcards and diamond notation - Sort and search collections and arrays |
| Topic 10: Lambda Expressions and Streams | 12-18% | - Create and use stream pipelines, including intermediate and terminal operations - Use Optional class and primitive type streams - Define and use functional interfaces and lambda expressions |
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