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