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For more info read reference:
1Z0-006 Official Certification Site Oracle Cloud Learning Resources
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 file system objects using java.nio.file API
- Read and write console and file data using I/O Streams
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Create and use subclasses and superclasses, including abstract classes
- Create, apply, and process annotations
- Declare, use, and expose modules, including the use of services
- Implement serialization and deserialization techniques on Java objects
- Define and use fields and methods, including instance, static and overloaded methods
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Initialize objects and their members using instance and static initialiser statements and constructors
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Create and use enumerations
- Deploy and execute modular applications, including automatic modules
- Understand variable scopes, apply encapsulation and make objects immutable
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Java Platform Module System | 10% | - Explain the default modules and class path - Deploy and execute modules - Use jdeps to determine dependencies - Declare module dependencies - Migrate applications to use modules - Explain the concept of module exports and requires |
| Topic 2: Controlling Program Flow | 10% | - Use Java control statements - Use for, while, and do/while loops - Use switch statements - Use if and if/else statements - Use break and continue statements |
| Topic 3: Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Iterate through a collection - Filter a collection using lambda expressions - Search for elements in a collection - Sort elements in a collection - Use generic types and diamond operator |
| Topic 4: Database Applications with JDBC | 5% | - Execute queries and process results - Use parameterized queries - Describe the advantages of using a connection pool - Connect to a database using JDBC |
| Topic 5: Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Call methods on objects - Create and manipulate strings - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods |
| Topic 6: Secure Coding in Java SE Application | 5% | - Secure sensitive data - Validate user input - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks |
| Topic 7: I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system |
| Topic 8: Working with Java OOP | 15% | - Implement inheritance - Implement encapsulation - Use abstract classes and interfaces - Implement polymorphism - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields |
| Topic 9: Exception Handling and Localization | 10% | - Create and throw custom exceptions - Describe the advantages of exception handling - Use assertions - Use standard exception classes - Use resource bundles and locale classes for internationalization - Create try-catch blocks and understand exception propagation |
| Topic 10: Concurrency | 10% | - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword |
| Topic 11: Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Topic 12: Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use method references with streams - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
