PDF Version DemoCertification exams change, and outdated study material can quietly sabotage your score. Dumpkiller keeps its 1Z0-819日本語 practice questions aligned with the current Oracle Java SE 11 Developer (1Z0-819日本語版) exam, with free updates for 365 days through 2026 and beyond.
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, Spanish, Chinese, Japanese |
| Passing Score: | 68% |
| Exam Format: | Multiple Choice, Multiple Select |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Exam Price: | $245 USD |
| Real Exam Qty: | 80 |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Exam Duration: | 90 minutes |
| 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 |
|---|---|---|
| Database Applications with JDBC | 5% | - Execute queries and process results - Connect to a database using JDBC - Use parameterized queries - Describe the advantages of using a connection pool |
| Java Platform Module System | 10% | - Use jdeps to determine dependencies - Migrate applications to use modules - Explain the default modules and class path - Deploy and execute modules - Declare module dependencies - Explain the concept of module exports and requires |
| Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Implement inheritance - Create inner classes and use them within other classes - Use abstract classes and interfaces - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Implement polymorphism |
| I/O (Fundamentals and NIO2) | 7% | - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use NIO2 API to work with file systems and file attributes |
| Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams |
| Working with Arrays and Collections | 8% | - Sort elements in a collection - Search for elements in a collection - Create a list, set, map, or queue collection - Use generic types and diamond operator - Filter a collection using lambda expressions - Iterate through a collection |
| Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Create worker threads using Runnable and Thread objects - Use synchronized blocks and the volatile keyword - Identify potential threading problems - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance |
| Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Validate user input - Secure sensitive data - Prevent Denial of Service (DoS) attacks |
| Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Use assertions - Use standard exception classes - Create try-catch blocks and understand exception propagation |
| Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use Java control statements - Use if and if/else statements - Use break and continue statements - Use switch statements |
| Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Declare and initialize variables - Create and manipulate strings - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Call methods on objects |
Your 1Z0-819日本語 Exam Questions, Answered
What is the 1Z0-819日本語 exam all about?
The Oracle Java SE 11 Developer (1Z0-819日本語版) exam (code: 1Z0-819日本語) is the official Oracle exam that leads to the Oracle Java SE certification. It sits at the Professional level of the Oracle certification track. It is also connected with related credentials such as Oracle Certified Professional: Java SE 11 Developer. Passing it proves to employers that your skills have been validated by Oracle itself, which is why the 1Z0-819日本語 credential keeps showing up in job postings.
How many questions are in the 1Z0-819日本語 exam, and how long does it take?
The Oracle Java SE 11 Developer (1Z0-819日本語版) exam gives you 90 minutes to work through 80. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.
What score do I need to pass the 1Z0-819日本語 exam, and how much does it cost?
The passing score for the Oracle Java SE 11 Developer (1Z0-819日本語版) exam is 68%, and the official registration fee is $245 USD. Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with Dumpkiller practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above 68%.
Are there any prerequisites for the 1Z0-819日本語 exam?
According to Oracle, the following applies: 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.. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://education.oracle.com/java/java-se/product_oss_279 before you register.
Can I try the 1Z0-819日本語 practice questions before buying?
Yes. Dumpkiller offers a free 1Z0-819日本語 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Oracle Java SE 11 Developer (1Z0-819日本語版) material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.
What happens if I do not pass the 1Z0-819日本語 exam, and how is my order delivered?
If you take the corresponding 1Z0-819日本語 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.
What topics are covered in the 1Z0-819日本語 exam?
The official Oracle Java SE 11 Developer (1Z0-819日本語版) syllabus is organized into 12 main domains. The first three are Working with Java OOP (15%), Exception Handling and Localization (10%), and Java Platform Module System (10%). For the full domain-by-domain breakdown, see the complete Exam Topics outline above.
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
Question 1
与えられた条件:
出力は何ですか?
A. 1 2 [1, 2, 3, 4] 3 4
B. 1 2 [1, 2, 3, 4] 3 4
C. 1 2 [1, 2, 3, 4] 3 4
D. 1 2 [1, 2, 3, 4] 3 4
Question 2
与えられた条件:
結果はどうなりましたか？
A. 何もない
B. 5 4 3 2 1
C. 5
D. 5 4 3 2 1 4 3 2 1 3 2 1 2 1 1
Question 3
与えられた条件:
結果はどうなりましたか？
A. 年:
B. 年: a
C. 実行時に java.util.NoSuchElementException がスローされます。
D. コンパイルに失敗しました。
Question 4
開発組織で使用されているツールの機能的なバグに対処しています。調査の結果、この権限付与を含むセキュリティポリシーファイルを使用してツールが実行されていることがわかりました。
どのような行動を取るべきでしょうか?
A. 調査中のバグとは関係がないため、何もありません。
B. 必要な権限だけをリストすることは、継続的なメンテナンスの課題となるため、何もありません。
C. 付与が過剰であるため削除します。
D. 内部ツールであり、一般には公開されていないため、何もありません。
E. 過剰な権限が付与されていることを参照して、ツールに対してセキュリティ バグを報告します。
Question 5
オートボクシングの成功例を 2 つ挙げてください。(2 つ選択してください。)
A. ダブルd = 4;
B. 文字列 a = "A";
C. 浮動小数点数 g = Float.valueOf(null);
D. 整数 e = 5;
E. ロング c = 23L;
F. 浮動小数点数 f = 6.0;
Solutions:
| Question 1 Answer: D | Question 2 Answer: A | Question 3 Answer: C | Question 4 Answer: E | Question 5 Answer: B,D |
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