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Oracle Java SE 11 Developer : 1z1-819
- Exam Code: 1z1-819
- Exam Name: Java SE 11 Developer
- Updated: Oct 16, 2026 Q & A: 297 Questions and Answers
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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.
Average Salary of Java SE 11 Developer Exam Number: 1Z0-819 Certified Professionals
The average salary is between $71k and $103k.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Use method references with streams - Use functional interfaces with lambda expressions |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use for, while, and do/while loops - Use switch statements - Use Java control statements - Use break and continue statements |
| Working with Java OOP | 15% | - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Implement inheritance - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Implement polymorphism |
| Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use assertions - Use standard exception classes - Create and throw custom exceptions - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization |
| Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Filter a collection using lambda expressions - Sort elements in a collection - Search for elements in a collection - Create a list, set, map, or queue collection - Iterate through a collection |
| Working with Java data types | 12% | - Declare and initialize variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Create and manipulate strings |
| Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use parallel streams to improve performance |
| I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes |
| Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Java Platform Module System | 10% | - Deploy and execute modules - Use jdeps to determine dependencies - Migrate applications to use modules - Explain the concept of module exports and requires - Declare module dependencies - Explain the default modules and class path |
| Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Use parameterized queries - Execute queries and process results - Connect to a database using JDBC |
| Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Validate user input |
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