How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Types of questions: Performance Based Questions
- Length of Exam: 85 min
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Passing Score: 60% or higher
- Examination Fees: $250 USD
- No. of Questions: 60 Questions
Certification Path for Java SE 11 Developer Exam Number: 1Z0-819
Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Concurrency | 10% | - Identify potential threading problems - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool |
| Topic 2: Controlling Program Flow | 10% | - Use Java control statements - Use switch statements - Use if and if/else statements - Use for, while, and do/while loops - Use break and continue statements |
| Topic 3: Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use assertions - Describe the advantages of exception handling - Use standard exception classes - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization |
| Topic 4: I/O (Fundamentals and NIO2) | 7% | - 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 - Use Path interface to manipulate file paths |
| Topic 5: Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Call methods on objects - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables |
| Topic 6: Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Implement inheritance - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Implement encapsulation - Implement polymorphism - Use abstract classes and interfaces |
| Topic 7: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use method references with streams - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions |
| Topic 8: Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Topic 9: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Validate user input |
| Topic 10: Java Platform Module System | 10% | - Explain the default modules and class path - Deploy and execute modules - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Migrate applications to use modules - Declare module dependencies |
| Topic 11: Database Applications with JDBC | 5% | - Connect to a database using JDBC - Use parameterized queries - Describe the advantages of using a connection pool - Execute queries and process results |
| Topic 12: Working with Arrays and Collections | 8% | - Sort elements in a collection - Iterate through a collection - Filter a collection using lambda expressions - Search for elements in a collection - Create a list, set, map, or queue collection - Use generic types and diamond operator |
