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To prepare for the Oracle 1z1-819 (Java SE 11 Developer) Certification Exam, candidates should have a solid understanding of Java SE 11 development. Candidates should be familiar with Java syntax, data types, control structures, and object-oriented programming principles. Additionally, candidates should practice writing Java code to solve problems. There are many resources available to help candidates prepare for the exam, including online courses, books, and practice exams.
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Oracle 1z1-819 certification exam is designed for Java developers who want to validate their skills and knowledge in Java SE 11 development. 1z1-819-JPN exam is intended for developers who are already familiar with Java programming and want to take their skills to the next level. To pass the Oracle 1z1-819 exam, candidates need to demonstrate their ability to write efficient and effective code and design robust applications.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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To take the Oracle 1Z0-819 certification exam, candidates must have a solid understanding of Java programming concepts, including data types, operators, control statements, and exception handling. They should also have experience developing applications using Java SE 11, including working with Java classes and interfaces, lambda expressions, streams, and modules. Additionally, candidates should have experience using development tools such as the Eclipse IDE, IntelliJ IDEA, or NetBeans.
Oracle 1z1-819 (Java SE 11 Developer) Certification Exam is an industry-recognized credential that demonstrates an individual's expertise in Java programming language and technology. Java SE 11 Developer (1Z0-819日本語版) certification exam is designed for developers who have experience in developing applications using Java SE 11. Candidates are required to demonstrate their knowledge of Java programming concepts, the Java SE 11 platform, and various API libraries. 1z1-819-JPN exam covers both theoretical and practical aspects of Java programming and is a comprehensive assessment of a developer's skills.
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Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Working with Java data types | 12% | - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables - Declare and initialize variables - Manipulate data using the StringBuilder class and its methods - Call methods on objects - Read or write to object fields |
| Topic 2: Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Implement polymorphism - Implement inheritance - Apply the static keyword to methods and fields |
| Topic 3: Database Applications with JDBC | 5% | - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool - Connect to a database using JDBC |
| Topic 4: Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use standard exception classes - Create and throw custom exceptions - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization - Use assertions |
| Topic 5: Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Secure sensitive data - Validate user input - Prevent Denial of Service (DoS) attacks |
| Topic 6: Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Iterate through a collection - Sort elements in a collection - Create a list, set, map, or queue collection - Filter a collection using lambda expressions - Search for elements in a collection |
| Topic 7: Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Topic 8: I/O (Fundamentals and NIO2) | 7% | - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Read and write console and file input/output using Java I/O system |
| Topic 9: Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use ExecutorService to concurrently execute tasks |
| Topic 10: Working with Streams and Lambda expressions | 13% | - Use functional interfaces with lambda expressions - Use method references with streams - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
| Topic 11: Controlling Program Flow | 10% | - Use break and continue statements - Use switch statements - Use if and if/else statements - Use for, while, and do/while loops - Use Java control statements |
| Topic 12: Java Platform Module System | 10% | - Deploy and execute modules - Declare module dependencies - Use jdeps to determine dependencies - Explain the default modules and class path - Migrate applications to use modules - Explain the concept of module exports and requires |
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