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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:
- Understand variable scopes, apply encapsulation and make objects immutable
- Initialize objects and their members using instance and static initialiser statements and constructors
- Secure resource access including filesystems, manage policies and execute privileged code
- Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create and use enumerations
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Define and use fields and methods, including instance, static and overloaded methods
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Create and use subclasses and superclasses, including abstract classes
- Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
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
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.
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Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Annotations | 5% | - Describe the purpose of annotations - Create custom annotations - Apply standard annotations to classes and methods |
| I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use switch statements - Use for, while, and do/while loops - Use break and continue statements - Use Java control statements |
| 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 - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Read or write to object fields |
| 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 |
| Database Applications with JDBC | 5% | - Execute queries and process results - Connect to a database using JDBC - Describe the advantages of using a connection pool - Use parameterized queries |
| Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Implement inheritance - Create inner classes and use them within other classes - Implement polymorphism - Apply the static keyword to methods and fields - Use abstract classes and interfaces |
| Working with Streams and Lambda expressions | 13% | - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use the Stream API to perform terminal operations - Use method references with streams - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline |
| Exception Handling and Localization | 10% | - Create and throw custom exceptions - Create try-catch blocks and understand exception propagation - Use assertions - Use standard exception classes - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling |
| Concurrency | 10% | - Use parallel streams to improve performance - Identify potential threading problems - Create worker threads using Runnable and Thread objects - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool |
| Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Filter a collection using lambda expressions - Search for elements in a collection - Iterate through a collection - Sort elements in a collection - Use generic types and diamond operator |
| Java Platform Module System | 10% | - Deploy and execute modules - Declare module dependencies - Explain the default modules and class path - Migrate applications to use modules - Explain the concept of module exports and requires - Use jdeps to determine dependencies |
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