PDF VersionHow 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:
- Desirable to have completed some or all of my Java Masterclass
- Have a desire to get Java certified and earn more money
- Be a professional programmer with Java experience
- Exposure to the Java programming language
- Preferably have completed all or part of my Java Masterclass here on Udemy (or another Java course)
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.
Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Database Applications with JDBC
- Java Object-Oriented Approach
- Working with Java data types
- Java I/O API
- Annotations
- Java Platform Module System
- Working with Arrays and Collections
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Examination Fees: $250 USD
- No. of Questions: 60 Questions
- Passing Score: 60% or higher
- Types of questions: Performance Based Questions
- Length of Exam: 85 min
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with Streams and Lambda expressions | 13% | - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use the Stream API to perform terminal operations - Use method references with streams |
| Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
| 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 NIO2 API to work with file systems and file attributes - Use Stream API with files |
| Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Secure sensitive data - Prevent SQL injection and other attacks - Validate user input |
| Working with Java OOP | 15% | - Implement polymorphism - Implement inheritance - Implement encapsulation - Create inner classes and use them within other classes - Apply the final keyword to classes, methods, and fields - Use abstract classes and interfaces - Apply the static keyword to methods and fields |
| Java Platform Module System | 10% | - Migrate applications to use modules - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Explain the default modules and class path - Deploy and execute modules - Declare module dependencies |
| Concurrency | 10% | - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks |
| Working with Java data types | 12% | - Declare and initialize variables - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Read or write to object fields - Manipulate data using the StringBuilder class and its methods |
| 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 |
| Exception Handling and Localization | 10% | - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization - Use standard exception classes - Create try-catch blocks and understand exception propagation - Use assertions - Create and throw custom exceptions |
| Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Sort elements in a collection - Create a list, set, map, or queue collection - Iterate through a collection - Use generic types and diamond operator - Search for elements in a collection |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use Java control statements - Use break and continue statements - Use switch statements - Use for, while, and do/while loops |
Oracle Java SE 11 Developer (1Z0-819日本語版) Sample Questions:
Question #1
1 行目にガベージ コレクションの対象となる Thing オブジェクトはいくつありますか?
A. 2
B. 3
C. 0
D. 4
E. 1
Question #2
次のコードフラグメントがあるとします:
通貨の値を 100.00 ドルとして表示します。
1 行目に挿入されたどのコードがこれを実現しますか?
A. NumberFormat フォーマッタ = NumberFormat.getCurrency(locale);
B. NumberFormat フォーマッタ = NumberFormat.getCurrencyInstance(locale);
C. NumberFormat フォーマッタ = NumberFormat.getInstance(locale);
D. NumberFormat フォーマッタ = NumberFormat.getInstance(locale).getCurrency();
Question #3
与えられた条件:
values配列が部分的にソートされていることを確認するには、どの行の後に assert i < 0 || values[i] <= values[i + 1]; を挿入すればよいですか?
A. 10行目以降
B. 8行目以降
C. 6行目以降
D. 5行目以降
Question #4
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 フラグメントのコンパイルを可能にしますか?
A. 関数<文字列> function = m -> m.toUpperCase();
B. UnaryOperator<String> 関数 = String::toUpperCase;
C. 関数 function = String::toUpperCase;
D. UnaryOperator 関数 = s -> s.toUpperCase();
Question #5
与えられた条件:
Point クラスをコンパイルする JsonField アノテーションの正しい定義は何ですか?
A. 
B. 
C. 
Solutions:
| Question #1 Correct Answer: E | Question #2 Correct Answer: D | Question #3 Correct Answer: C | Question #4 Correct Answer: B | Question #5 Correct Answer: B |
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