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How to book the Java SE 11 Developer Exam Number: 1Z0-819
You register with an Oracle partner pearsonvue.com, tie your Oracle account, choose whether you want to pass in the center or from home. If you choose the option from home, you will be followed through the camera and microphone throughout the exam, there should be no one in the room, you can not talk to anyone and look only at the screen, the Internet must be stable, without troubles, otherwise, the result will be canceled.
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How to Prepare For Java SE 11 Developer Exam Number: 1Z0-819
Preparation Guide for Java SE 11 Developer Exam Number: 1Z0-819
Introduction for Java SE 11 Developer Exam Number: 1Z0-819
1Z0-006 exam is for those that have completed the Database Foundations, Database Design and Programming with SQL (Oracle Academy training), Oracle Database 12c Administration Workshop or Oracle Database Introduction to SQL training. Passing this exam gives the certification credential demonstrating your understanding of the different types of database models and components. And, you will enhance knowledge of database components, concepts and design, implementation of business roles, SQL language and queries, and ERD modeling and languages to manage data and transactions.
The Java SE 11 Developer Exam Number: 1Z0-819 is recommended for the following candidates who have:
- Have a desire to get Java certified and earn more money
- Preferably have completed all or part of my Java Masterclass here on Udemy (or another Java course)
- Exposure to the Java programming language
- Desirable to have completed some or all of my Java Masterclass
- Be a professional programmer with Java experience
Becoming Java certified is a great way to help improve your career options with more job opportunities and more pay. That's because Oracle's Java certification program, unlike many other certifications out there, has real value in the industry. One of the main reasons is that it's an official Oracle certification, but second, the exam is quite difficult to pass. Employers see programmers who are Java certified as more valuable than programmers who are not certified. So it's totally worth getting Java certified to take advantage of this.
ORACLE 1Z0-006 practice exams and ORACLE 1Z0-006 practice exams are designed specifically for candidates to gain an uperhand on experience and knowledge to get through this exam.
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 | Weight | Objectives |
|---|---|---|
| Topic 1: Secure Coding in Java SE Application | 5% | - Validate user input - Prevent SQL injection and other attacks - Secure sensitive data - Prevent Denial of Service (DoS) attacks |
| Topic 2: Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results |
| Topic 3: Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use standard exception classes - Create and throw custom exceptions - Use assertions - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling |
| Topic 4: Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Topic 5: Java Platform Module System | 10% | - Deploy and execute modules - Declare module dependencies - Explain the default modules and class path - Migrate applications to use modules - Explain the concept of module exports and requires - Use jdeps to determine dependencies |
| Topic 6: Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Use parallel streams to improve performance - Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects |
| Topic 7: Working with Streams and Lambda expressions | 13% | - Use the Stream API to perform terminal operations - Use method references with streams - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline |
| Topic 8: Working with Arrays and Collections | 8% | - Search for elements in a collection - Sort elements in a collection - Iterate through a collection - Filter a collection using lambda expressions - Use generic types and diamond operator - Create a list, set, map, or queue collection |
| Topic 9: Controlling Program Flow | 10% | - Use switch statements - Use Java control statements - Use for, while, and do/while loops - Use break and continue statements - Use if and if/else statements |
| Topic 10: Working with Java OOP | 15% | - Implement polymorphism - Create inner classes and use them within other classes - Implement inheritance - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Implement encapsulation - Use abstract classes and interfaces |
| Topic 11: Working with Java data types | 12% | - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Create and manipulate strings - Manipulate data using the StringBuilder class and its methods |
| Topic 12: I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Use Path interface to manipulate file paths |
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
数値、通貨、パーセンテージの書式設定に使用されるデフォルトのロケールを設定する 2 つのステートメントはどれですか? (2 つ選択してください。)
- A. Locale.setDefault("en_CA");
- B. Locale.setDefault(Locale.SIMPLIFIED_CHINESE);
- C. Locale.setDefault(Locale.Category.FORMAT、Locale.CANADA_FRENCH);
- D. Locale.setDefault("es", Locale.US);
- E. Locale.setDefault(Locale.Category.FORMAT, "zh-CN");
Correct Answer: A,C 🗳️
与えられた条件:
結果はどうなりましたか？
- A. 2,34,54,5
- B. 2,34,54,3
- C. 2,54,54,5
- D. 2,34,34,5
Correct Answer: C 🗳️
Explanation: Only visible for Exam4Free 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. 特に注意してください
細心の注意を払ってください - B. 特に注意してください
- C. プログラムは何も出力しません。
- D. 実行時に例外がスローされます
Correct Answer: D 🗳️
Java が動的である理由は何ですか?
- A. ランタイムは、マシン言語ソースだけでなく、さまざまな言語コンパイラからの実行可能ファイルも処理できます。
- B. Java コンパイラはリフレクションを使用して、クラス メソッドがターゲット プラットフォームのリソースによってサポートされているかどうかをテストします。
- C. 実行時に、クラスは必要に応じてロードされ、新しいコード モジュールはオンデマンドでロードできます。
- D. Java コンパイラは、特定のターゲット プラットフォームで実行するためにクラスを前処理します。
Correct Answer: C 🗳️
与えられた条件:
どちらが正しいでしょうか？
- A. コンパイルに失敗しました。
- B. 3 つのスレッドが作成されます。
- C. 4 つのスレッドが作成されます。
- D. 実行時に IllegalThreadStateException がスローされます。
Correct Answer: D 🗳️
Explanation: Only visible for Exam4Free members. You can sign-up / login (it's free).
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