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Oracle 1Z0-819 Exam Questions : Java SE 11 Developer
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer
- Updated: Oct 08, 2026
- Q&As: 297 Questions and Answers
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1Z0-006 exam is for those that have completed the Database Foundations, Database Design and Programming with SQL (Oracle Academy training), Oracle Database 12c Administration Workshop or Oracle Database Introduction to SQL training. Passing this exam gives the certification credential demonstrating your understanding of the different types of database models and components. And, you will enhance knowledge of database components, concepts and design, implementation of business roles, SQL language and queries, and ERD modeling and languages to manage data and transactions.
The Java SE 11 Developer Exam Number: 1Z0-819 is recommended for the following candidates who have:
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The average salary is between $71k and $103k.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with Java data types | 12% | - Manipulate data using the StringBuilder class and its methods - Read or write to object fields - Differentiate between object reference variables and primitive variables - Call methods on objects - Declare and initialize variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Create and manipulate strings |
| Database Applications with JDBC | 5% | - Execute queries and process results - Use parameterized queries - Connect to a database using JDBC - Describe the advantages of using a connection pool |
| Java Platform Module System | 10% | - Deploy and execute modules - Migrate applications to use modules - Explain the default modules and class path - Declare module dependencies - Use jdeps to determine dependencies - Explain the concept of module exports and requires |
| Working with Arrays and Collections | 8% | - Iterate through a collection - Search for elements in a collection - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Use generic types and diamond operator - Sort elements in a collection |
| I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths |
| 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 |
| Working with Java OOP | 15% | - Implement inheritance - Implement encapsulation - Apply the static keyword to methods and fields - Implement polymorphism - Use abstract classes and interfaces - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields |
| Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| 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 |
| Controlling Program Flow | 10% | - Use break and continue statements - Use switch statements - Use if and if/else statements - Use for, while, and do/while loops - Use Java control statements |
| Exception Handling and Localization | 10% | - Use assertions - Create and throw custom exceptions - Use standard exception classes - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization |
| Secure Coding in Java SE Application | 5% | - Validate user input - Prevent Denial of Service (DoS) attacks - Secure sensitive data - Prevent SQL injection and other attacks |
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