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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: Sep 05, 2026
- No. of Questions: 297 Questions and Answers
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Oracle 1Z0-819 exam covers a range of topics such as Java basics, Java data types, Java arrays and collections, Java I/O, Java concurrency, Java annotations, and Java modules. It also covers topics such as Java lambda expressions, Java streams, Java functional interfaces, and Java date/time API. 1z1-819-JPN exam is intended to measure the developer's ability to write efficient, maintainable, and scalable Java code.
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 |
|---|---|---|
| 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 |
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