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