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Oracle 1Z0-819 : Java SE 11 Developer
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer
- Updated: Jul 25, 2026 Q&As: 297 Questions and Answers
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:
- Initialize objects and their members using instance and static initialiser statements and constructors
- Secure resource access including filesystems, manage policies and execute privileged code
- Create and use enumerations
- Understand variable scopes, apply encapsulation and make objects immutable
- Define and use fields and methods, including instance, static and overloaded methods
- Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create and use subclasses and superclasses, including abstract classes
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.
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Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Java Platform Module System
- Java Object-Oriented Approach
- Java I/O API
- Working with Arrays and Collections
- Annotations
- Working with Java data types
- Database Applications with JDBC
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Examination Fees: $250 USD
- Passing Score: 60% or higher
- No. of Questions: 60 Questions
- Types of questions: Performance Based Questions
- Length of Exam: 85 min
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Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: I/O (Fundamentals and NIO2) | 7% | - 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 Stream API with files - Use Path interface to manipulate file paths |
| Topic 2: Java Platform Module System | 10% | - Explain the concept of module exports and requires - Explain the default modules and class path - Migrate applications to use modules - Use jdeps to determine dependencies - Declare module dependencies - Deploy and execute modules |
| Topic 3: Working with Arrays and Collections | 8% | - Sort elements in a collection - Search for elements in a collection - Iterate through a collection - Create a list, set, map, or queue collection - Use generic types and diamond operator - Filter a collection using lambda expressions |
| Topic 4: Working with Java data types | 12% | - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Declare and initialize variables |
| Topic 5: Exception Handling and Localization | 10% | - Create and throw custom exceptions - 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 |
| Topic 6: Working with Java OOP | 15% | - Create inner classes and use them within other classes - Implement encapsulation - Implement polymorphism - Apply the final keyword to classes, methods, and fields - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Implement inheritance |
| Topic 7: 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 8: Concurrency | 10% | - Identify potential threading problems - Use parallel streams to improve performance - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool |
| Topic 9: Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Topic 10: Controlling Program Flow | 10% | - Use if and if/else statements - Use Java control statements - Use break and continue statements - Use for, while, and do/while loops - Use switch statements |
| Topic 11: Working with Streams and Lambda expressions | 13% | - Use method references with streams - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions |
| Topic 12: Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Execute queries and process results - Connect to a database using JDBC - Use parameterized queries |
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