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Oracle 1Z0-819 is an exam designed for Java developers to test their skills and knowledge in Java SE 11 development. 1Z0-819 exam is intended for individuals who have a strong foundation in Java programming concepts and want to validate their skills in this area. Candidates who pass 1Z0-819 exam will earn the Oracle Certified Professional: Java SE 11 Developer certification, which is recognized globally as a mark of excellence in Java development.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 exam is a challenging but rewarding certification exam for Java developers who want to validate their skills in Java SE 11. By passing the exam and earning the Oracle Certified Professional: Java SE 11 Developer certification, candidates can enhance their career prospects and demonstrate their expertise in Java programming.
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Oracle 1z1-819 exam is a comprehensive exam that covers a wide range of topics related to Java development. 1Z0-819 exam includes questions on Java syntax and constructs, object-oriented programming, concurrency, collections, and I/O. In addition to these topics, the exam also covers Java development tools, such as Eclipse, NetBeans, and IntelliJ IDEA.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Database Applications with JDBC | 5% | - Execute queries and process results - Describe the advantages of using a connection pool - Use parameterized queries - Connect to a database using JDBC |
| Topic 2: Java Platform Module System | 10% | - Explain the default modules and class path - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Deploy and execute modules - Migrate applications to use modules - Declare module dependencies |
| Topic 3: Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Create a list, set, map, or queue collection - Iterate through a collection - Sort elements in a collection - Search for elements in a collection - Filter a collection using lambda expressions |
| Topic 4: I/O (Fundamentals and NIO2) | 7% | - Use Path interface to manipulate file paths - 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 |
| Topic 5: Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions |
| Topic 6: Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Topic 7: Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword |
| Topic 8: Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use standard exception classes - Use assertions - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling |
| Topic 9: Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Implement inheritance - Implement encapsulation - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Implement polymorphism |
| Topic 10: Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Call methods on objects - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Read or write to object fields |
| Topic 11: 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 |
| Topic 12: Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Validate user input - Prevent SQL injection and other attacks |
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