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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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| Section | Weight | Objectives |
|---|---|---|
| Java Platform Module System | 10% | - Declare module dependencies - Use jdeps to determine dependencies - Explain the default modules and class path - Migrate applications to use modules - Deploy and execute modules - Explain the concept of module exports and requires |
| Controlling Program Flow | 10% | - Use switch statements - Use Java control statements - Use break and continue statements - Use for, while, and do/while loops - Use if and if/else statements |
| I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Use Path interface to manipulate file paths |
| Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Use abstract classes and interfaces - Implement polymorphism - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Implement inheritance |
| Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Working with Java data types | 12% | - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Declare and initialize variables - Create and manipulate strings - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Read or write to object fields |
| Concurrency | 10% | - Use parallel streams to improve performance - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword |
| Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Iterate through a collection - Sort elements in a collection - Search for elements in a collection - Use generic types and diamond operator |
| Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use functional interfaces with lambda expressions - Use method references with streams - Use the Stream API to perform terminal operations |
| 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 |
| Exception Handling and Localization | 10% | - Create and throw custom exceptions - Create try-catch blocks and understand exception propagation - Use assertions - Describe the advantages of exception handling - Use standard exception classes - Use resource bundles and locale classes for internationalization |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Execute queries and process results - Describe the advantages of using a connection pool - Use parameterized queries |
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