Exam Name: Java SE 11 Developer (1Z0-819日本語版)
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE
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Second-attempt candidates are the most honest judges of study material, and they keep choosing Exams4sures. The Oracle Java SE 11 Developer (1Z0-819日本語版) package offers 297 verified 1Z0-819日本語 practice questions for people who want the next attempt to be the last.
Oracle 1Z0-819日本語 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Available Languages: | Portuguese, English, Japanese, Chinese, Spanish |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Exam Price: | $245 USD |
| Exam Format: | Multiple Select, Multiple Choice |
| Exam Duration: | 90 minutes |
| Passing Score: | 68% |
| Real Exam Qty: | 80 |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Pearson VUE testing centers (online proctored exam also available) |
| Pre Condition: | Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815. |
| Official Syllabus URL: | https://education.oracle.com/java/java-se/product_oss_279 |
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Validate user input - Prevent SQL injection and other attacks |
| Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline - Use method references with streams |
| Working with Arrays and Collections | 8% | - Iterate through a collection - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Sort elements in a collection - Use generic types and diamond operator - Search for elements in a collection |
| Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Use synchronized blocks and the volatile keyword - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects - Identify potential threading problems |
| Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Working with Java OOP | 15% | - Create inner classes and use them within other classes - Implement encapsulation - Apply the static keyword to methods and fields - Use abstract classes and interfaces - Implement polymorphism - Apply the final keyword to classes, methods, and fields - Implement inheritance |
| Exception Handling and Localization | 10% | - Use assertions - Describe the advantages of exception handling - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization - Create try-catch blocks and understand exception propagation - Use standard exception classes |
| 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 |
| Java Platform Module System | 10% | - Declare module dependencies - Migrate applications to use modules - Explain the default modules and class path - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Deploy and execute modules |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use break and continue statements - Use for, while, and do/while loops - Use Java control statements - Use switch statements |
| Working with Java data types | 12% | - Declare and initialize variables - Create and manipulate strings - Call methods on objects - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Describe the advantages of using a connection pool - Use parameterized queries - Execute queries and process results |
Oracle 1Z0-819日本語 Exam: FAQ for Serious Candidates
Oracle Java SE 11 Developer (1Z0-819日本語版) is an official Oracle exam, listed under exam code 1Z0-819日本語. A passing result earns you the Oracle Java SE certification at the Professional level. It also ties into Oracle Certified Professional: Java SE 11 Developer, extending its value across your certification roadmap. Employers read this credential as verified competence, which is why it keeps appearing in job requirements.
Expect 80 questions inside 90 minutes on the Oracle Java SE 11 Developer (1Z0-819日本語版) exam. That pace punishes hesitation, so rehearse it: the Exams4sures software engine simulates the real exam scene, reminds you of the questions you got wrong, and pushes you to re-practice them until the clock stops being your enemy.
Passing Oracle Java SE 11 Developer (1Z0-819日本語版) requires 68%, and the official registration fee is $245 USD. Retakes charge the full $245 USD again, which is why experienced candidates treat preparation as the cheaper exam fee. Verify your readiness with repeated Exams4sures practice scores above the requirement before you commit to a date.
Oracle recommends but does not require candidates to first obtain the Oracle Certified Professional: Java SE 11 Programmer I (1Z0-815) certification. However, 1Z0-819 can be taken directly without 1Z0-815.
Requirements evolve, so confirm the current conditions before registering on the official exam page.
Yes. Exams4sures provides a free download demo of the Oracle Java SE 11 Developer (1Z0-819日本語版) material, so you can check the content before choosing a version. After purchase, a one-year warranty covers you: the latest version is sent to you as it releases, free for 365 days, and after expiry you can extend the update service at a 50% discount.
Your purchase is covered by a 100% money-back guarantee with clear conditions. Take the Oracle Java SE 11 Developer (1Z0-819日本語版) exam within 60 days of purchase; if you fail, provide your unqualified result by submitting a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and the full refund is processed within 7 days. The exam must match your product, candidate and payer names must match, and attempts within 3 days of purchase, unused downloads, free materials, and expired orders are not covered. Alternatively, exchange for two other exam products of equal value, free, or wait for updates while keeping your original product's update service.
Delivery is instant: files unlock for download at payment and are emailed within one minute. If nothing arrives within 2 hours, check spam and contact customer service, which works 7/24 and normally replies within two hours. Installation is unlimited across your computers.
The Oracle Java SE 11 Developer (1Z0-819日本語版) syllabus spans 12 domains, led by Concurrency (10%), Working with Java data types (12%), and Exception Handling and Localization (10%). The complete topic list is published above; candidates who study the map first rarely get lost later.
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
次のモジュール宣言を調べます。
正しい記述はどれですか? (2つ選択してください。)
- A. ServiceProvider モジュールは com.myimpl パッケージをエクスポートする必要があります。
- B. ServiceProvider モジュールは、実行時に com.example.api API を提供できる唯一のモジュールです。
- C. ServiceProviderモジュールは、ServiceProviderモジュールを使用するモジュール(Consumerなど)のIDを認識しません。
- D. Consumer モジュールには ServiceProvider モジュールが必要です。
- E. com.example.api API を別のモジュール ServiceAPI に配置することで、複数のプロバイダー モジュールを簡単にインストールできるようになります。
Correct Answer: B,D 🗳️
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与えられた条件:
1 行目のどのステートメントがこのコードのコンパイルを可能にしますか?
- A. サプライヤー関数 = () -> fruits.get (0);
- B. 述語関数 = a -> a.equals("banana");
- C. コンシューマー関数 = (String f) -> (System.out.println(f);};
- D. 関数 function = x -> x.substring(0,2);
Correct Answer: D 🗳️
コードを分析します。
Global:namescope を生成するために println メソッド内に挿入できる 2 つのオプションはどれですか? (2 つ選択してください。)
- A. テスト.プレフィックス+テスト.名前
- B. 接頭辞+名前
- C. プレフィックス+テスト名
- D. Test.getName+prefix
- E. 新しい Test().prefix+新しい Test().name
- F. Test.prefix+Test.getName()
Correct Answer: E,F 🗳️
次の宣言を前提とします。
コード フラグメントの Loc1 に適用できる 2 つのアノテーションはどれですか。(2 つ選択してください。)
- A. @リソース
- B. @リソース(値={{}})
- C. @リソース()
- D. @リソース("顧客1")
- E. @Resource({"顧客1", "顧客2"})
Correct Answer: D,E 🗳️
適切な JDBC URL はどれですか?
- A. http://localhost mysql.jdbc:3306/database
- B. jdbe.mysql.com://localhost:3306/データベース
- C. jdbc:mysql://localhost:3306/データベース
- D. http://localhost.mysql.com:3306/database
Correct Answer: C 🗳️
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