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Instant Download Oracle : 1Z0-819日本語 Questions & Answers as PDF & Test Engine
- Exam Code: 1Z0-819
- Exam Name: Java SE 11 Developer (1Z0-819日本語版)
- Updated: Oct 20, 2026
- No. of Questions: 297 Questions and Answers
- Download Limit: Unlimited
Price: $79.98
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An attractive certification changes how the job market sees you, and Oracle Java SE 11 Developer (1Z0-819日本語版) is one of those credentials. Exams4sures prepares you for the 1Z0-819日本語 exam with 297 verified practice questions and detailed explanations for every answer.
Oracle 1Z0-819日本語 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Passing Score: | 68% |
| Real Exam Qty: | 80 |
| Exam Price: | $245 USD |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Exam Format: | Multiple Choice, Multiple Select |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Available Languages: | Chinese, English, Portuguese, Spanish, Japanese |
| 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 |
|---|---|---|
| Working with Java data types | 12% | - Create and manipulate strings - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Manipulate data using the StringBuilder class and its methods - Read or write to object fields - Call methods on objects |
| Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Sort elements in a collection - Create a list, set, map, or queue collection - Filter a collection using lambda expressions - Iterate through a collection - Search for elements in a collection |
| Java Platform Module System | 10% | - Migrate applications to use modules - Declare module dependencies - Deploy and execute modules - Explain the concept of module exports and requires - Explain the default modules and class path - Use jdeps to determine dependencies |
| Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Use standard exception classes - Use resource bundles and locale classes for internationalization - Create and throw custom exceptions - Use assertions |
| Working with Java OOP | 15% | - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Implement inheritance - Implement polymorphism - Create inner classes and use them within other classes |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use Java control statements - Use for, while, and do/while loops - Use break and continue statements - Use switch statements |
| I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes |
| Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Validate user input - Secure sensitive data |
| Working with Streams and Lambda expressions | 13% | - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions - Describe the Stream interface and pipeline |
| Concurrency | 10% | - Use parallel streams to improve performance - Use java.util.concurrent atomic classes and ForkJoinPool - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks |
| Database Applications with JDBC | 5% | - Execute queries and process results - Describe the advantages of using a connection pool - Use parameterized queries - Connect to a database using JDBC |
Oracle Java SE 11 Developer (1Z0-819日本語版) Exam: Answers Before You Commit
Oracle Java SE 11 Developer (1Z0-819日本語版) is an official Oracle exam, identified by exam code 1Z0-819日本語. Passing it earns the Oracle Java SE certification at the Professional level. It also relates to Oracle Certified Professional: Java SE 11 Developer. Certifications like this one remain a reliable route to standing out: they prove ability in a way resumes alone cannot.
The Oracle Java SE 11 Developer (1Z0-819日本語版) exam contains 80 questions to complete within 90 minutes. The candidates who run out of time are usually the ones who never practiced against a clock. The Exams4sures software engine lets you limit your test time exactly like the real exam, exposing pacing weaknesses while they are still free to fix.
You need 68% to pass Oracle Java SE 11 Developer (1Z0-819日本語版), and the official registration fee is $245 USD. Retakes charge the full $245 USD again, which makes failing a genuinely expensive outcome. Reduce that risk the rational way: practice with the Exams4sures questions until your scores sit consistently above the requirement, then book.
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.
Vendor requirements change from time to time, so verify the current conditions before registering via the official exam page.
Yes. You can download the free demo of the Oracle Java SE 11 Developer (1Z0-819日本語版) questions before you buy, and after purchase you have the right to one year of free updates. When your product expires, extending the update service costs 50% of the regular price. Three versions, PDF, software, and online APP, let you study the way that suits you.
A 100% money-back guarantee protects you under clear conditions. Take the Oracle Java SE 11 Developer (1Z0-819日本語版) exam within 60 days of purchase; if you fail, you can claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are ineligible, as are downloaded-but-unused products, free materials, and expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are processed within 7 days. Alternatively, exchange for two other exam products of equal value, free, while keeping the update service on your original purchase.
Delivery is instant: files unlock for download at payment and are automatically emailed within one minute. If nothing arrives within 2 hours, check spam and contact customer service, available 24/7. Installation is unlimited across your computers.
The Oracle Java SE 11 Developer (1Z0-819日本語版) syllabus divides into 12 domains. The leading areas are Exception Handling and Localization (10%), Controlling Program Flow (10%), and Concurrency (10%). The complete outline is published above; knowing your shortcomings starts with knowing the syllabus.
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
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. 関数<Integer> f = n -> n * 2;
- B. 関数<Integer, Integer> f = n -> n * 2;
- C. 関数<int, int> f = n -> n * 2;
- D. 関数 f = n -> n * 2;
- E. 関数<int> f = n -> n * 2;
Correct Answer: B 🗳️
Explanation: Only visible for Exams4sures members. You can sign-up / login (it's free).
与えられた条件:
結果はどうなりましたか？
- A. abcd
- B. アブド
- C. アブドフ
- D. コンパイルに失敗しました。
- E. adf
Correct Answer: A 🗳️
与えられた条件:
コードで次の出力を生成する必要があります:
ジョン
ジョー
ジェーン
出力を生成するには、1 行目と 2 行目にどのコード フラグメントを挿入する必要がありますか?
- A. 1 行目に Comparator<Person> を挿入します。
入れる
パブリック int 比較(Person person) {
person.name.compare(this.name) を返します。
}
2行目。 - B. 1 行目に Comparator<Person> を挿入します。
入れる
パブリック int compareTo(Person person) {
person.name.compareTo(this.name) を返します。
}
2行目。 - C. 1 行目に Comparable<Person> を挿入します。
入れる
パブリック int 比較(Person p1, Person p2) {
p1.name.compare(p2.name) を返します。
}
2行目。 - D. 1 行目に Comparator<Person> を挿入します。
入れる
パブリック int 比較(Person p1, Person p2) {
p1.name.compare(p2.name) を返します。
}
2行目。
Correct Answer: B 🗳️
次の宣言を前提とします。
次のコード フラグメントを調べます。
/* Loc1 */ クラス ProcessOrders { ... }
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(優先度=100)
- B. @リソース(優先度=0)
- C. @リソース
- D. @リソース(名前="顧客1")
- E. @リソース(名前="顧客1", 優先度=100)
Correct Answer: A,B 🗳️
与えられた条件:
MyPersistenceData クラスに java.io.Serializable インターフェイスを実装します。
どのメソッドをオーバーライドする必要がありますか?
- A. readExternalメソッド
- B. writeExternalメソッド
- C. readExternalメソッドとwriteExternalメソッド
- D. 何もない
Correct Answer: C 🗳️
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