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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:
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Read and write console and file data using I/O Streams
- Understand variable scopes, apply encapsulation and make objects immutable
- Create and use enumerations
- Handle file system objects using java.nio.file API
- Deploy and execute modular applications, including automatic modules
- Initialize objects and their members using instance and static initialiser statements and constructors
- Implement serialization and deserialization techniques on Java objects
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create, apply, and process annotations
- Declare, use, and expose modules, including the use of services
- Define and use fields and methods, including instance, static and overloaded methods
- Create and use subclasses and superclasses, including abstract classes
Oracle 1z1-819 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Real Exam Qty: | 80 |
| Exam Format: | Multiple Choice, Multiple Select |
| Available Languages: | English, Japanese, Chinese, Portuguese, Spanish |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Exam Price: | $245 USD |
| Exam Duration: | 90 minutes |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Passing Score: | 68% |
| Sample Questions: | Oracle 1z1-819 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 |
Who should take the Java SE 11 Developer Exam Number: 1Z0-819
This exam helps students to understand the basic relational database concepts. Moreover, it will teach the students about data modeling concepts, building Entity Relationship Diagrams (ERDs), and mapping ERDs. Moreover, with this project-based learning techniques, students will be able to create and work with projects to design, implement, and demonstrate a database solution for a business or organization.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Secure sensitive data - Validate user input |
| Topic 2: Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use parallel streams to improve performance - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects |
| Topic 3: Exception Handling and Localization | 10% | - Use standard exception classes - Create and throw custom exceptions - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization - Use assertions - Create try-catch blocks and understand exception propagation |
| Topic 4: Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Create inner classes and use them within other classes - Apply the static keyword to methods and fields - Use abstract classes and interfaces - Implement polymorphism - Implement inheritance |
| Topic 5: Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Use parameterized queries - Connect to a database using JDBC - Execute queries and process results |
| Topic 6: Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Topic 7: Working with Java data types | 12% | - Call methods on objects - Read or write to object fields - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Create and manipulate strings - Differentiate between object reference variables and primitive variables |
| Topic 8: Controlling Program Flow | 10% | - Use break and continue statements - Use Java control statements - Use if and if/else statements - Use switch statements - Use for, while, and do/while loops |
| Topic 9: Java Platform Module System | 10% | - Use jdeps to determine dependencies - Declare module dependencies - Deploy and execute modules - Migrate applications to use modules - Explain the concept of module exports and requires - Explain the default modules and class path |
| Topic 10: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Use method references with streams |
| Topic 11: Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Search for elements in a collection - Use generic types and diamond operator - Iterate through a collection - Filter a collection using lambda expressions - Sort elements in a collection |
| Topic 12: I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - 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 |
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