What is Java SE 11 Developer Exam Number: 1Z0-819 Certification Exam and Retake policy
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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Java Platform Module System
- Database Applications with JDBC
- Java I/O API
- Working with Java data types
- Working with Arrays and Collections
- Annotations
- Java Object-Oriented Approach
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Secure Coding in Java SE Application | 5% | - Validate user input - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Secure sensitive data |
| Topic 2: Database Applications with JDBC | 5% | - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool |
| Topic 3: Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Read or write to object fields - Declare and initialize variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Manipulate data using the StringBuilder class and its methods - Create and manipulate strings - Call methods on objects |
| Topic 4: I/O (Fundamentals and NIO2) | 7% | - 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 - Use NIO2 API to work with file systems and file attributes |
| Topic 5: Working with Java OOP | 15% | - Implement polymorphism - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Implement inheritance - Use abstract classes and interfaces |
| Topic 6: Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance |
| Topic 7: Java Platform Module System | 10% | - Deploy and execute modules - Explain the default modules and class path - Declare module dependencies - Explain the concept of module exports and requires - Migrate applications to use modules - Use jdeps to determine dependencies |
| Topic 8: Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Use generic types and diamond operator - Search for elements in a collection - Create a list, set, map, or queue collection - Iterate through a collection - Sort elements in a collection |
| Topic 9: Controlling Program Flow | 10% | - Use break and continue statements - Use if and if/else statements - Use Java control statements - Use for, while, and do/while loops - Use switch statements |
| Topic 10: Working with Streams and Lambda expressions | 13% | - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Use method references with streams - Use the Stream API to perform terminal operations - Describe the Stream interface and pipeline - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
| Topic 11: Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| Topic 12: Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Use standard exception classes - Use assertions - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation - Create and throw custom exceptions |
