Exam Name: Java SE 11 Developer (1Z0-819日本語版)
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE
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Finding time to prepare for the Oracle Java SE 11 Developer (1Z0-819日本語版) exam is hard when work already fills your week. Fast2test packs 297 focused practice questions for the 1Z0-819日本語 exam into formats you can study in short bursts, so every spare half hour moves you closer to a pass.
Oracle 1Z0-819日本語 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Exam Duration: | 90 minutes |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Real Exam Qty: | 80 |
| Exam Price: | $245 USD |
| Available Languages: | Spanish, English, Japanese, Chinese, Portuguese |
| Exam Format: | Multiple Select, Multiple Choice |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Passing Score: | 68% |
| Sample Questions: | Oracle 1Z0-819日本語 Sample Questions |
| 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 |
|---|---|---|
| Topic 1: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Validate user input |
| Topic 2: Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Sort elements in a collection - Filter a collection using lambda expressions - Search for elements in a collection - Create a list, set, map, or queue collection - Iterate through a collection |
| Topic 3: Java Platform Module System | 10% | - Explain the concept of module exports and requires - Deploy and execute modules - Explain the default modules and class path - Use jdeps to determine dependencies - Migrate applications to use modules - Declare module dependencies |
| Topic 4: Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Create try-catch blocks and understand exception propagation - Create and throw custom exceptions - Describe the advantages of exception handling - Use standard exception classes - Use assertions |
| Topic 5: Working with Java OOP | 15% | - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Implement inheritance - Implement polymorphism - Implement encapsulation - Use abstract classes and interfaces |
| Topic 6: Working with Streams and Lambda expressions | 13% | - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations |
| Topic 7: Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Create and manipulate strings - Declare and initialize variables - Manipulate data using the StringBuilder class and its methods - Read or write to object fields |
| Topic 8: I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system |
| Topic 9: Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Use parallel streams to improve performance - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects |
| Topic 10: Annotations | 5% | - Describe the purpose of annotations - Create custom annotations - Apply standard annotations to classes and methods |
| Topic 11: Database Applications with JDBC | 5% | - Use parameterized queries - Describe the advantages of using a connection pool - Execute queries and process results - Connect to a database using JDBC |
| Topic 12: Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use Java control statements - Use if and if/else statements - Use switch statements - Use break and continue statements |
Everything You Want to Know About the Oracle Java SE 11 Developer (1Z0-819日本語版) (1Z0-819日本語) Exam
The 1Z0-819日本語 exam, officially titled Java SE 11 Developer (1Z0-819日本語版), is the Oracle exam you pass to earn the Oracle Java SE certification, a credential at the Professional level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as Oracle Certified Professional: Java SE 11 Developer.
The 1Z0-819日本語 exam includes 80 questions and gives you 90 minutes to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the Fast2test desktop or online test engine is the most reliable way to build that rhythm before exam day.
The passing score for the 1Z0-819日本語 exam is 68%, and the official registration fee is $245 USD. Keep in mind that a failed attempt means paying $245 USD again in full to retake it, so book your slot only when your scores on Fast2test practice tests sit consistently above the passing line.
Oracle lists the following prerequisites or eligibility notes for the 1Z0-819日本語 exam: 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 can change over time, so confirm the details on the official exam page at Oracle's official site before you register.
Yes. Fast2test offers a free PDF demo of the 1Z0-819日本語 material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.
Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding 1Z0-819日本語 exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.
Delivery is instant: your download links are emailed within one minute of payment, and you can also download directly from the website. If nothing arrives within 2 hours, contact customer service and check your spam folder. There is no limit on how many computers you can install the material on.
The 1Z0-819日本語 exam blueprint is divided into 12 domains, starting with I/O (Fundamentals and NIO2) (7%); Exception Handling and Localization (10%); Annotations (5%). For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
Question 1
与えられた条件:
1 行目に独立して挿入された場合、どの 2 つのメソッド実装が正しいですか? (2 つ選択してください。)
A. オプションE
B. オプションD
C. オプションC
D. オプションB
E. オプションA
Question 2
次のコードフラグメントがあるとします:
結果はどうなりましたか？
A. [レタス、ケール]
B. [レタス、ケール]
[スズキ、サーモン]
C. コンパイル エラーがスローされます。
D. [ケール、レタス]
[サーモン、スズキ]
Question 3
与えられた条件:
スポーツカークラスについては何がわかっていますか?
A. Sportscar サブクラスは、スーパークラス Automobile の setTurbo メソッドをオーバーライドできません。
B. Sportscar クラスは、Automobile クラスよりも多くの機能を備えたスーパークラスです。
C. Sportscar クラスは Automobile のサブクラスであり、そのメソッドを継承します。
D. Sportscar クラスは、スーパークラス Automobile から setTurbo メソッドを継承します。
Question 4
与えられた条件:
このコマンドで実行します:
java メイン 1 2 3
結果はどうなりましたか？
A. コンパイルに失敗しました。
B. 0). 11). 22). 3
C. 0)。1
D. 0). one1). two1). two... と印刷する無限ループを作成します。
E. java.lang.NullPointerException がスローされます。
Question 5
与えられた条件:
1 行目に挿入されたどの 2 行によって、このコードをコンパイルできるようになりますか? (2 つ選択してください。)
A. パブリック抽象 void walk();
B. プライベート void walk(){}
C. 抽象 void walk();
D. void walk(){}
E. 保護された void walk(){}
Solutions:
| Question 1 Answer: A,E | Question 2 Answer: C | Question 3 Answer: C | Question 4 Answer: D | Question 5 Answer: A,E |
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