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By passing the Oracle 1Z0-819 exam, candidates can demonstrate their proficiency in Java development using Java SE 11 and increase their career opportunities as a professional Java developer. Additionally, Oracle certifications are recognized globally and can help candidates gain credibility and recognition in the industry.
Oracle 1Z0-819 certification exam is designed for Java developers who want to validate their skills and knowledge in Java SE 11. 1z1-819 exam is a combination of two exams, namely 1Z0-815 and 1Z0-816. 1z1-819 exam assesses a candidate’s proficiency in Java syntax and fundamental programming concepts, as well as their ability to develop Java applications using Java SE 11. Java SE 11 Developer certification exam is ideal for Java developers who want to improve their career prospects and demonstrate their expertise in the Java programming language.
The Java SE 11 Developer exam is a comprehensive exam that tests the proficiency of Java developers in a variety of areas. 1z1-819 exam is divided into multiple sections, each focusing on a different aspect of Java development. 1z1-819 exam format includes multiple-choice questions, drag-and-drop questions, and scenario-based questions. 1z1-819 exam is timed, and candidates are expected to complete the exam within the allotted time. 1z1-819 exam is challenging, but passing it can demonstrate a developer's proficiency in Java development and can provide significant career opportunities.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
| Section | Weight | Objectives |
|---|---|---|
| Concurrency | 10% | - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword - Identify potential threading problems - Use parallel streams to improve performance - Use ExecutorService to concurrently execute tasks |
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations |
| Database Applications with JDBC | 5% | - Execute queries and process results - Connect to a database using JDBC - Use parameterized queries - Describe the advantages of using a connection pool |
| Working with Java data types | 12% | - Read or write to object fields - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Declare and initialize variables - Create and manipulate strings - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables |
| Exception Handling and Localization | 10% | - Use assertions - Use standard exception classes - Create try-catch blocks and understand exception propagation - Create and throw custom exceptions - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization |
| Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use Java control statements - Use switch statements - Use break and continue statements - Use if and if/else statements |
| Working with Arrays and Collections | 8% | - Iterate through a collection - Create a list, set, map, or queue collection - Sort elements in a collection - Filter a collection using lambda expressions - Search for elements in a collection - Use generic types and diamond operator |
| Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Validate user input - Secure sensitive data - Prevent SQL injection and other attacks |
| Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Working with Java OOP | 15% | - Implement inheritance - Implement polymorphism - Apply the static keyword to methods and fields - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Create inner classes and use them within other classes - Use abstract classes and interfaces |
| I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system |
| Java Platform Module System | 10% | - Deploy and execute modules - Declare module dependencies - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Explain the default modules and class path - Migrate applications to use modules |
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Java SE 11 Developer
Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions) (1z1-813日本語版)
Java SE 11 Developer (1Z0-819日本語版)
Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions) (1z0-813日本語版)
Java SE 11 Developer (1Z0-819日本語版)
Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions)
Java SE 11 Developer
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