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Certification Path for Java SE 11 Developer Exam Number: 1Z0-819
Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
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Difficulty in Attempting Java SE 11 Developer Exam Number: 1Z0-819
If you have at least some programming experience, we recommend using the ORACLE 1Z0-006 practice exam and ORACLE 1Z0-006 practice exams exam dumps and practice exams written for exam 1z0-816 and it covers most of what will be on the exam. GuideTorrent.con also has practice exams to prepare for the exam. Also, you can find mock exams to check the knowledge learned after reading the book.
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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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:
- Define and use fields and methods, including instance, static and overloaded methods
- Create and use enumerations
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Create and use subclasses and superclasses, including abstract classes
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Deploy and execute modular applications, including automatic modules
- Read and write console and file data using I/O Streams
- Create, apply, and process annotations
- Implement serialization and deserialization techniques on Java objects
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Understand variable scopes, apply encapsulation and make objects immutable
- Handle file system objects using java.nio.file API
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Initialize objects and their members using instance and static initialiser statements and constructors
- Declare, use, and expose modules, including the use of services
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Use assertions - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Use standard exception classes - Create and throw custom exceptions |
| I/O (Fundamentals and NIO2) | 7% | - 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 - Use NIO2 API to work with file systems and file attributes |
| Controlling Program Flow | 10% | - Use Java control statements - Use for, while, and do/while loops - Use break and continue statements - Use if and if/else statements - Use switch statements |
| Concurrency | 10% | - Create worker threads using Runnable and Thread objects - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Identify potential threading problems |
| Working with Arrays and Collections | 8% | - Create a list, set, map, or queue collection - Use generic types and diamond operator - Iterate through a collection - Sort elements in a collection - Search for elements in a collection - Filter a collection using lambda expressions |
| Java Platform Module System | 10% | - Explain the concept of module exports and requires - Declare module dependencies - Explain the default modules and class path - Use jdeps to determine dependencies - Migrate applications to use modules - Deploy and execute modules |
| Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Execute queries and process results - Connect to a database using JDBC - Use parameterized queries |
| Working with Java OOP | 15% | - Create inner classes and use them within other classes - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Implement inheritance - Implement polymorphism - Use abstract classes and interfaces - Apply the static keyword to methods and fields |
| Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Working with Java data types | 12% | - Read or write to object fields - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods - Create and manipulate strings |
| Secure Coding in Java SE Application | 5% | - Validate user input - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Secure sensitive data |
| Working with Streams and Lambda expressions | 13% | - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Filter a collection using lambda expressions - Use method references with streams |
