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Oracle 1z1-819 (Java SE 11 Developer) Certification Exam is designed for Java developers who want to demonstrate their expertise in Java programming language and related technologies. Java SE 11 Developer certification exam tests the knowledge and skills required to develop Java applications using Java SE 11. 1z1-819 exam covers topics such as Java fundamentals, object-oriented programming, concurrency, and collections framework. Oracle recommends that candidates have a minimum of six months to two years of experience in Java programming before taking 1z1-819 exam.
Oracle 1z1-819 certification exam is a valuable credential for Java developers who want to validate their skills in Java programming. 1z1-819 exam covers a wide range of topics and requires a passing score of 63%. Java SE 11 Developer certification is recognized globally and can lead to better job opportunities and higher salaries.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Create and throw custom exceptions - Use assertions - Use standard exception classes - Create try-catch blocks and understand exception propagation |
| Topic 2: I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system - Use Stream API with files |
| Topic 3: Working with Java OOP | 15% | - Implement encapsulation - Implement inheritance - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields - Implement polymorphism |
| Topic 4: Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Connect to a database using JDBC - Execute queries and process results - Use parameterized queries |
| Topic 5: Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Validate user input |
| Topic 6: Annotations | 5% | - Describe the purpose of annotations - Create custom annotations - Apply standard annotations to classes and methods |
| Topic 7: Working with Arrays and Collections | 8% | - Sort elements in a collection - Search for elements in a collection - Use generic types and diamond operator - Iterate through a collection - Create a list, set, map, or queue collection - Filter a collection using lambda expressions |
| Topic 8: Java Platform Module System | 10% | - Deploy and execute modules - Explain the concept of module exports and requires - Explain the default modules and class path - Migrate applications to use modules - Declare module dependencies - Use jdeps to determine dependencies |
| Topic 9: Working with Streams and Lambda expressions | 13% | - Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Describe the Stream interface and pipeline - Filter a collection using lambda expressions |
| Topic 10: Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use if and if/else statements - Use Java control statements - Use switch statements - Use break and continue statements |
| Topic 11: Concurrency | 10% | - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Use java.util.concurrent atomic classes and ForkJoinPool - Create worker threads using Runnable and Thread objects - Use parallel streams to improve performance |
| Topic 12: Working with Java data types | 12% | - Create and manipulate strings - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods - Read or write to object fields - Declare and initialize variables |
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