Oracle 1Z0-819日本語 : Java SE 11 Developer (1Z0-819日本語版)

Exam Code: 1z1-819-JPN

Exam Name: Java SE 11 Developer (1Z0-819日本語版)

Updated: Oct 14, 2026

Q & A: 297 Questions and Answers

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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.

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	Objectives
Topic 1: Exception Handling	- Error handling in Java 1. Checked and unchecked exceptions 2. Try-catch-finally blocks
Topic 2: Streams API	- Stream operations 1. Collectors 2. Intermediate and terminal operations
Topic 3: Concurrency	- Multithreading 1. Executor framework 2. Thread lifecycle
Topic 4: Java I/O and NIO	- File handling 1. NIO file APIs 2. FileReader and FileWriter
Topic 5: JDBC and Database Connectivity	- Database access 1. SQL execution from Java 2. JDBC API usage
Topic 6: Generics and Collections	- Java Collections Framework 1. Sorting and searching 2. List, Set, Map interfaces - Generics 1. Generic classes and methods 2. Wildcards
Topic 7: Functional Programming	- Lambda Expressions 1. Functional interfaces 2. Lambda syntax and usage
Topic 8: Java Class Design	- Encapsulation and Inheritance 1. Inheritance hierarchies 2. Class structure and modifiers - Polymorphism 1. Dynamic binding 2. Method overriding

Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:

Question #1

与えられた条件:

どのクラスがスレッドセーフになりますか?

A. 同期を実行します。
B. setB を同期します。
C. クラス A はスレッドセーフです。
D. foo を同期させます。
E. foo とセットを同期させます。

Reveal Solution Discussion 0

Correct Answer: A 🗳️

Question #2

次のコードフラグメントがあるとします:
パスソース = Paths.get("/repo/a/a.txt");
パスの宛先 = Paths.get("/repo");
Files.move(source, destination); // 1行目
Files.delete (ソース); // 2行目
ソースファイルと宛先フォルダーが存在すると仮定すると、結果はどうなりますか?