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Oracle 1Z0-819 (Java SE 11 Developer) Certification Exam is a professional certification exam designed to test the skills and knowledge of Java developers. It is a globally recognized certification that validates the expertise of developers in Java programming language and related technologies.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Exam Format: | Multiple Select, Multiple Choice |
| Exam Price: | $245 USD |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Passing Score: | 68% |
| Real Exam Qty: | 80 |
| Available Languages: | Portuguese, Spanish, Chinese, Japanese, English |
| Exam Duration: | 90 minutes |
| Sample Questions: | Oracle 1Z0-819 Sample Questions |
| Exam Way: | Pearson VUE testing centers (online proctored exam also available) |
| Pre Condition: | Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815. |
| Official Syllabus URL: | https://education.oracle.com/java/java-se/product_oss_279 |
Oracle 1z1-819 exam is a multiple-choice exam that consists of 80 questions. 1Z0-819 exam has a time limit of 180 minutes, and you must score 63% or higher to pass the exam. 1Z0-819 exam is computer-based and can be taken at any Pearson VUE testing center worldwide. With this certification, you can demonstrate your proficiency in Java programming and its related technologies and become a valuable asset to your organization.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with Java data types | 12% | - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Read or write to object fields - Call methods on objects - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables |
| I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths - Use Stream API with files |
| Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization - Use standard exception classes - Use assertions |
| Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Implement polymorphism - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Implement encapsulation - Implement inheritance - Create inner classes and use them within other classes |
| Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Iterate through a collection - Sort elements in a collection - Filter a collection using lambda expressions - Use generic types and diamond operator - Search for elements in a collection |
| Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects |
| Java Platform Module System | 10% | - Explain the concept of module exports and requires - Declare module dependencies - Use jdeps to determine dependencies - Deploy and execute modules - Migrate applications to use modules - Explain the default modules and class path |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool |
| Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use if and if/else statements - Use break and continue statements - Use switch statements - Use Java control statements |
| Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Secure sensitive data - Validate user input |
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams |
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