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Last Updated: Aug 13, 2026
No. of Questions: 297 Questions & Answers with Testing Engine
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You register with an Oracle partner pearsonvue.com, tie your Oracle account, choose whether you want to pass in the center or from home. If you choose the option from home, you will be followed through the camera and microphone throughout the exam, there should be no one in the room, you can not talk to anyone and look only at the screen, the Internet must be stable, without troubles, otherwise, the result will be canceled.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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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.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths |
| Topic 2: Secure Coding in Java SE Application | 5% | - Validate user input - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks |
| Topic 3: Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use switch statements - Use Java control statements - Use if and if/else statements - Use break and continue statements |
| Topic 4: Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| Topic 5: Java Platform Module System | 10% | - Use jdeps to determine dependencies - Explain the default modules and class path - Migrate applications to use modules - Explain the concept of module exports and requires - Declare module dependencies - Deploy and execute modules |
| Topic 6: Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization - Use standard exception classes - Create try-catch blocks and understand exception propagation - Use assertions - Describe the advantages of exception handling |
| Topic 7: 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 the Stream API to perform terminal operations - Use method references with streams - Describe the Stream interface and pipeline |
| Topic 8: Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Create and manipulate strings - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Read or write to object fields |
| Topic 9: Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results |
| Topic 10: Concurrency | 10% | - Identify potential threading problems - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword - Use parallel streams to improve performance - Use java.util.concurrent atomic classes and ForkJoinPool - Create worker threads using Runnable and Thread objects |
| Topic 11: Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Search for elements in a collection - Sort elements in a collection - Iterate through a collection - Use generic types and diamond operator - Create a list, set, map, or queue collection |
| Topic 12: Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Apply the static keyword to methods and fields - Implement inheritance - Implement polymorphism |
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