Oracle Java SE 11 Developer (1Z0-819日本語版) : 1Z0-819日本語
- Exam Code: 1Z0-819日本語
- Exam Name: Java SE 11 Developer (1Z0-819日本語版)
- Updated: Aug 24, 2026
- Q & A: 297 Questions and Answers
About Oracle 1Z0-819日本語 Exam
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.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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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.
Who should take the Java SE 11 Developer Exam Number: 1Z0-819
This exam helps students to understand the basic relational database concepts. Moreover, it will teach the students about data modeling concepts, building Entity Relationship Diagrams (ERDs), and mapping ERDs. Moreover, with this project-based learning techniques, students will be able to create and work with projects to design, implement, and demonstrate a database solution for a business or organization.
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Validate user input - Secure sensitive data |
| Topic 2: Working with Arrays and Collections | 8% | - Iterate through a collection - Use generic types and diamond operator - Sort elements in a collection - Filter a collection using lambda expressions - Search for elements in a collection - Create a list, set, map, or queue collection |
| Topic 3: Working with Java data types | 12% | - Call methods on objects - Declare and initialize variables - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Read or write to object fields - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Topic 4: Working with Java OOP | 15% | - Implement polymorphism - Implement inheritance - Apply the final keyword to classes, methods, and fields - Use abstract classes and interfaces - Create inner classes and use them within other classes - Apply the static keyword to methods and fields - Implement encapsulation |
| Topic 5: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions |
| Topic 6: I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths - Use Stream API with files |
| Topic 7: Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| Topic 8: Exception Handling and Localization | 10% | - Use standard exception classes - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Use assertions - Create and throw custom exceptions |
| Topic 9: Java Platform Module System | 10% | - Explain the concept of module exports and requires - Explain the default modules and class path - Deploy and execute modules - Declare module dependencies - Use jdeps to determine dependencies - Migrate applications to use modules |
| Topic 10: Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Use parameterized queries - Connect to a database using JDBC - Execute queries and process results |
| Topic 11: Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance - Use ExecutorService to concurrently execute tasks - Identify potential threading problems |
| Topic 12: Controlling Program Flow | 10% | - Use Java control statements - Use break and continue statements - Use for, while, and do/while loops - Use switch statements - Use if and if/else statements |
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