Oracle Java SE 11 Developer (1Z0-819日本語版) : 1Z0-819日本語
- Exam Code: 1Z0-819日本語
- Exam Name: Java SE 11 Developer (1Z0-819日本語版)
- Updated: Oct 11, 2026
- Q & A: 297 Questions and Answers
About Oracle Java SE 11 Developer (1Z0-819日本語版) : 1Z0-819日本語 Exam
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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 pdf:
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Use Java Streams to filter, transform and process data
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Use generics, including wildcards
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Sort collections and arrays using Comparator and Comparable interfaces
The benefit in Obtaining the 1Z0-819 Exam Certification
- Java SE 11 Developer Exam will be confident and stand different from others as their skills are more trained than non-certified professionals
- Java SE 11 Developer Exam provide opportunities to get a job easily in which they are interested in instead of wasting years and ending without getting any experience
- Java SE 11 Developer Exam networks provide them with the right career direction than non certified usually are unable to get
- Java SE 11 Developer Exam are distinguished among competitors
- Java SE 11 Developer Exam provides practical experience to candidates from all the aspects to be a proficient worker in the organization
- Java SE 11 Developer Exam have the knowledge to use the tools to complete the task efficiently and cost effectively than the other non-certified professionals lack in doing so
- Java SE 11 Developer Exam have more useful and relevant networks that help them in setting career goals for themselves
- Java SE 11 Developer Exam can give them an edge at that time easily when candidates appear for a job interview employers seek to notify something which differentiates the individual to another
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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.
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:
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Create and use subclasses and superclasses, including abstract classes
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Implement serialization and deserialization techniques on Java objects
- Create and use enumerations
- Create, apply, and process annotations
- Read and write console and file data using I/O Streams
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Handle file system objects using java.nio.file API
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Deploy and execute modular applications, including automatic modules
- Define and use fields and methods, including instance, static and overloaded methods
- Understand variable scopes, apply encapsulation and make objects immutable
- Declare, use, and expose modules, including the use of services
- Initialize objects and their members using instance and static initialiser statements and constructors
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Use parallel streams to improve performance - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects |
| Topic 2: Java Platform Module System | 10% | - Migrate applications to use modules - Explain the default modules and class path - Explain the concept of module exports and requires - Use jdeps to determine dependencies - Declare module dependencies - Deploy and execute modules |
| Topic 3: Working with Java data types | 12% | - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Read or write to object fields - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects - Differentiate between object reference variables and primitive variables |
| Topic 4: 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 |
| Topic 5: Working with Arrays and Collections | 8% | - Iterate through a collection - Use generic types and diamond operator - Sort elements in a collection - Create a list, set, map, or queue collection - Search for elements in a collection - Filter a collection using lambda expressions |
| Topic 6: Secure Coding in Java SE Application | 5% | - Validate user input - Secure sensitive data - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks |
| Topic 7: Controlling Program Flow | 10% | - Use switch statements - Use Java control statements - Use if and if/else statements - Use break and continue statements - Use for, while, and do/while loops |
| Topic 8: Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| Topic 9: Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use assertions - Use resource bundles and locale classes for internationalization - Create and throw custom exceptions - Describe the advantages of exception handling - Use standard exception classes |
| Topic 10: I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes |
| Topic 11: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Use method references with streams - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions |
| Topic 12: Working with Java OOP | 15% | - Create inner classes and use them within other classes - Use abstract classes and interfaces - Implement polymorphism - Implement inheritance - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Implement encapsulation |
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
次のコードフラグメントがあるとします:
ファイルを読み込む前にパス名を検証する必要があります。検証の前に、すべてのパス名を正規化する必要があります。
nl 行に挿入されたどのコードがこれを実現しますか?
- A.
- B.
- C.
- D.
Correct Answer: A 🗳️
次のコードフラグメントがあるとします:
このコードが PRRT を印刷できるようにするには、1 行目に独立して挿入された 2 つのステートメントのどれを使用しますか?
- A. i-;
- B. j--;
- C. b をブレークします。
- D. b を続行します。
- E. を中断します。
- F. 続行します。
Correct Answer: E 🗳️
与えられた条件:
結果はどうなりましたか？
- A. 2 行目でコンパイルが失敗します。
- B. 1 行目でコンパイルが失敗します。
- C. 実行時に例外がスローされます。
- D. アクション
- E. abアクション
Correct Answer: D 🗳️
与えられた条件:
どちらが本当でしょうか？
- A. 3 行目はコンパイル エラーが発生する最初の行です。
- B. 2 行目はコンパイル エラーが発生する最初の行です。
- C. エラーなしで準拠します。
- D. 1行目はコンパイルエラーを引き起こす最初の行です。
Correct Answer: D 🗳️
与えられた条件:
1 行目で Filechannel オブジェクトを取得します。
どのコードフラグメントがこれを実現しますか?
- A.
- B.
- C.
- D.
Correct Answer: D 🗳️
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