Oracle 1Z0-819 Q&A - in .pdf
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer
- Updated: Aug 21, 2026
- Q & A: 297 Questions and Answers
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Oracle 1Z0-819 Q&A - Testing Engine
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer
- Updated: Aug 21, 2026
- Q & A: 297 Questions and Answers
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About Oracle 1Z0-819 Exam
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 Java Streams to filter, transform and process data
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Sort collections and arrays using Comparator and Comparable interfaces
- Use generics, including wildcards
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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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.
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Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Implement inheritance - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Implement polymorphism - Create inner classes and use them within other classes - Use abstract classes and interfaces |
| Topic 2: Working with Streams and Lambda expressions | 13% | - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Use the Stream API to perform terminal operations - Describe the Stream interface and pipeline |
| Topic 3: Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Secure sensitive data - Validate user input - Prevent SQL injection and other attacks |
| Topic 4: Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Topic 5: Working with Arrays and Collections | 8% | - Iterate through a collection - Create a list, set, map, or queue collection - Filter a collection using lambda expressions - Search for elements in a collection - Use generic types and diamond operator - Sort elements in a collection |
| Topic 6: Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use parallel streams to improve performance - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use synchronized blocks and the volatile keyword |
| Topic 7: I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes - Use Stream API with files |
| Topic 8: Working with Java data types | 12% | - Create and manipulate strings - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Read or write to object fields - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Topic 9: Controlling Program Flow | 10% | - Use Java control statements - Use if and if/else statements - Use switch statements - Use for, while, and do/while loops - Use break and continue statements |
| Topic 10: Database Applications with JDBC | 5% | - Use parameterized queries - Describe the advantages of using a connection pool - Execute queries and process results - Connect to a database using JDBC |
| Topic 11: Exception Handling and Localization | 10% | - Describe the advantages of exception handling - Use standard exception classes - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Use assertions - Create and throw custom exceptions |
| Topic 12: Java Platform Module System | 10% | - Deploy and execute modules - Explain the default modules and class path - Use jdeps to determine dependencies - Declare module dependencies - Explain the concept of module exports and requires - Migrate applications to use modules |
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