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<h2>Java SE 11 Programmer II (1Z0-816)</h2><h3>Exam Overview</h3><p>The Oracle 1Z0-816: Java SE 11 Programmer II certification exam is designed for experienced Java developers seeking to validate their advanced knowledge of the Java SE 11 platform. This professional-level certification tests candidates' understanding of Java SE 11's advanced features, APIs, and development practices, building upon the foundational knowledge covered in the Java SE 11 Programmer I exam.</p><h3>Exam Information</h3><p>This certification focuses on modern Java application development using advanced Java SE 11 features including modules, functional programming, concurrency, security, and various API implementations. The 1Z0-816 validates a programmer's ability to develop robust, efficient, and maintainable applications leveraging the full capabilities of the Java SE 11 platform.</p><h3>Key Topics Covered</h3><ul><li>Java Platform Module System</li><li>Advanced object-oriented programming</li><li>Functional programming with Lambda expressions</li><li>Stream API operations</li><li>Java concurrency and multithreading</li><li>I/O operations (including NIO.2)</li><li>Secure coding practices</li><li>Database applications with JDBC</li><li>Annotations and reflection</li><li>Exception handling</li><li>Java Collections Framework advanced usage</li></ul><h3>Target Audience</h3><p>This exam is ideal for:</p><ul><li>Experienced Java programmers</li><li>Software developers working with Java SE 11</li><li>Java application architects</li><li>Backend Java developers</li><li>Enterprise application developers</li><li>Technology leads focused on Java</li><li>Java trainers and educators</li></ul><h3>Exam Format</h3><ul><li>Multiple-choice and multiple-select questions</li><li>80 questions</li><li>Time limit: 180 minutes (3 hours)</li><li>Passing score: 63% (63 out of 100)</li><li>Proctored examination environment</li><li>Available in multiple languages</li></ul><h3>Skills Measured</h3><h4>Java Fundamentals (15%)</h4><ul><li>Create and use modules</li><li>Implement class hierarchies</li><li>Handle exceptions and assertions</li><li>Use the Java Object-Oriented approach</li></ul><h4>Interfaces (15%)</h4><ul><li>Create and implement interfaces</li><li>Use functional interfaces</li><li>Define and write default and private methods</li><li>Handle multiple inheritance issues</li></ul><h4>Collections (15%)</h4><ul><li>Use the Collections Framework</li><li>Implement the Map, List, Set, Queue interfaces</li><li>Sort collections and arrays</li><li>Use the Streams API with collections</li></ul><h4>Functional Programming (15%)</h4><ul><li>Use functional interfaces</li><li>Implement Lambda expressions</li><li>Use Lambda expressions and method references</li><li>Use built-in functional interfaces</li></ul><h4>Java Stream API (15%)</h4><ul><li>Develop code using Stream API</li><li>Use primitive and object streams</li><li>Apply terminal and intermediate operations</li><li>Use collectors with streams</li></ul><h4>Concurrency (15%)</h4><ul><li>Create worker threads using Runnable and Callable</li><li>Use synchronized keyword and concurrent collections</li><li>Apply thread lifecycle methods</li><li>Use Executors and ThreadPools</li><li>Handle deadlock, livelock, and race conditions</li></ul><h4>I/O and NIO.2 (10%)</h4><ul><li>Read and write console and file data</li><li>Use I/O streams</li><li>Implement serialization</li><li>Use Path interface, Files class, and file attributes</li></ul><h3>Preparation Resources</h3><ul><li>Oracle University training courses</li><li>Official Java SE 11 documentation</li><li>Oracle Java Certification study guides</li><li>Practice tests and exam simulations</li><li>Advanced Java programming courses</li><li>Hands-on coding projects focusing on Java 11 features</li><li>Community forums and study groups</li></ul><h3>&nbsp;</h3>

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