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Last Updated: Jul 27, 2026
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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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For more info read reference:
1Z0-006 Official Certification Site Oracle Cloud Learning Resources
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.
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Controlling Program Flow | 10% | - Use switch statements - Use Java control statements - Use break and continue statements - Use for, while, and do/while loops - Use if and if/else statements |
| Topic 2: Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Topic 3: Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement encapsulation - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields - Implement inheritance - Implement polymorphism - Apply the static keyword to methods and fields |
| Topic 4: Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods - Call methods on objects - Declare and initialize variables - Read or write to object fields - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Topic 5: Java Platform Module System | 10% | - Deploy and execute modules - Explain the default modules and class path - Migrate applications to use modules - Declare module dependencies - Use jdeps to determine dependencies - Explain the concept of module exports and requires |
| Topic 6: 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 7: I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths |
| Topic 8: Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Search for elements in a collection - Iterate through a collection - Use generic types and diamond operator - Sort elements in a collection - Filter a collection using lambda expressions |
| Topic 9: Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions |
| Topic 10: Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent SQL injection and other attacks - Validate user input - Prevent Denial of Service (DoS) attacks |
| Topic 11: Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance |
| Topic 12: Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use assertions - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization - Use standard exception classes |
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