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What is Java SE 11 Developer Exam Number: 1Z0-819 Certification Exam and Retake policy
Oracle Cloud Certification credentials are only valid for a period of 18 months from the date you earn the credential. The certification will become inactive at the end of 18 months. However, for Oracle candidates, it is necessary to hold an active certification in order to have access to various certification benefits including, using Oracle certification logos, certificates, scoring reports, digital badges, and certification verification.
To stay current, candidates have to re-certify themselves with the latest version of the exam. Oracle Cloud Certifications include various titles with levels that are Oracle Certified Associate, Specialist, and Professional. Moreover, the Oracle Cloud Certifications are updated continuously throughout the year for keeping current with major product and service releases and re-released on an annual basis with a new title.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 exam dumps:
- Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
- Use local variable type inference, including as lambda parameters
- Handle text using String and StringBuilder classes
Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Working with Java data types
- Annotations
- Database Applications with JDBC
- Java I/O API
- Java Object-Oriented Approach
- Java Platform Module System
- Working with Arrays and Collections
Oracle 1Z0-819 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Passing Score: | 68% |
| Available Languages: | English, Japanese, Chinese, Portuguese, Spanish |
| Real Exam Qty: | 80 |
| Exam Price: | $245 USD |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Duration: | 90 minutes |
| Sample Questions: | Oracle 1Z0-819 Sample Questions |
| Exam Way: | Pearson VUE testing centers (online proctored exam also available) |
| Pre Condition: | Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815. |
| Official Syllabus URL: | https://education.oracle.com/java/java-se/product_oss_279 |
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Use standard exception classes - Use assertions - Create and throw custom exceptions - Describe the advantages of exception handling |
| Topic 2: I/O (Fundamentals and NIO2) | 7% | - 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 - Use NIO2 API to work with file systems and file attributes |
| Topic 3: Annotations | 5% | - Describe the purpose of annotations - Create custom annotations - Apply standard annotations to classes and methods |
| Topic 4: Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Declare and initialize variables - Call methods on objects - Manipulate data using the StringBuilder class and its methods |
| Topic 5: Java Platform Module System | 10% | - Use jdeps to determine dependencies - Deploy and execute modules - Declare module dependencies - Explain the concept of module exports and requires - Explain the default modules and class path - Migrate applications to use modules |
| Topic 6: Controlling Program Flow | 10% | - Use Java control statements - Use switch statements - Use break and continue statements - Use if and if/else statements - Use for, while, and do/while loops |
| Topic 7: Working with Java OOP | 15% | - Implement polymorphism - Create inner classes and use them within other classes - Implement encapsulation - Implement inheritance - Apply the static keyword to methods and fields - Use abstract classes and interfaces - Apply the final keyword to classes, methods, and fields |
| Topic 8: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Use method references with streams - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions |
| Topic 9: Database Applications with JDBC | 5% | - Use parameterized queries - Execute queries and process results - Connect to a database using JDBC - Describe the advantages of using a connection pool |
| Topic 10: Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Sort elements in a collection - Search for elements in a collection - Use generic types and diamond operator - Iterate through a collection - Filter a collection using lambda expressions |
| Topic 11: Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent SQL injection and other attacks - Validate user input - Prevent Denial of Service (DoS) attacks |
| Topic 12: Concurrency | 10% | - Use parallel streams to improve performance - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Create worker threads using Runnable and Thread objects - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword |
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