Oracle Java SE 11 Developer (1Z0-819日本語版) : 1Z0-819日本語
Updated: Sep 16, 2026
Q & A: 297 Questions and Answers
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Updated: Sep 16, 2026
Q & A: 297 Questions and Answers
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The following will be discussed in ORACLE 1Z0-006 exam dumps:
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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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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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| Section | Weight | Objectives |
|---|---|---|
| I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - 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 |
| Working with Java data types | 12% | - Create and manipulate strings - Differentiate between object reference variables and primitive variables - Declare and initialize variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Call methods on objects - Manipulate data using the StringBuilder class and its methods |
| Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Sort elements in a collection - Iterate through a collection - Search for elements in a collection - Create a list, set, map, or queue collection - Filter a collection using lambda expressions |
| Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use standard exception classes - Use assertions - Create and throw custom exceptions - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization |
| Database Applications with JDBC | 5% | - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool - Connect to a database using JDBC |
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Implement inheritance - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Use abstract classes and interfaces - Implement polymorphism - Implement encapsulation |
| Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions |
| Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent SQL injection and other attacks - Validate user input - Prevent Denial of Service (DoS) attacks |
| 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% | - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance |
| Java Platform Module System | 10% | - Deploy and execute modules - Migrate applications to use modules - Use jdeps to determine dependencies - Declare module dependencies - Explain the concept of module exports and requires - Explain the default modules and class path |
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