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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 exam dumps:
- Use local variable type inference, including as lambda parameters
- Handle text using String and StringBuilder classes
- Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 exam dumps:
- Read and write console and file data using I/O Streams
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Declare, use, and expose modules, including the use of services
- Create and use subclasses and superclasses, including abstract classes
- Implement serialization and deserialization techniques on Java objects
- Deploy and execute modular applications, including automatic modules
- Create, apply, and process annotations
- Understand variable scopes, apply encapsulation and make objects immutable
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Handle file system objects using java.nio.file API
- Create and use enumerations
- Define and use fields and methods, including instance, static and overloaded methods
- Initialize objects and their members using instance and static initialiser statements and constructors
Oracle 1Z0-819日本語 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Java SE 11 Developer |
| Exam Number: | 1z0-819 |
| Certificate Validity Period: | Lifetime (no expiration, but recertification recommended to stay current) |
| Available Languages: | Chinese, Spanish, English, Portuguese, Japanese |
| Real Exam Qty: | 80 |
| Exam Format: | Multiple Choice, Multiple Select |
| Passing Score: | 68% |
| Exam Duration: | 90 minutes |
| Related Certifications: | Oracle Certified Professional: Java SE 11 Developer |
| Exam Price: | $245 USD |
| Sample Questions: | Oracle 1Z0-819日本語 Sample Questions |
| 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 |
|---|---|---|
| Topic 1: I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system |
| Topic 2: Exception Handling and Localization | 10% | - Use assertions - Use resource bundles and locale classes for internationalization - Use standard exception classes - Create and throw custom exceptions - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation |
| Topic 3: Annotations | 5% | - Apply standard annotations to classes and methods - Describe the purpose of annotations - Create custom annotations |
| Topic 4: Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Search for elements in a collection - Use generic types and diamond operator - Sort elements in a collection - Create a list, set, map, or queue collection - Iterate through a collection |
| Topic 5: Java Platform Module System | 10% | - Declare module dependencies - Use jdeps to determine dependencies - Explain the default modules and class path - Migrate applications to use modules - Deploy and execute modules - Explain the concept of module exports and requires |
| Topic 6: Working with Streams and Lambda expressions | 13% | - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Describe the Stream interface and pipeline |
| Topic 7: Controlling Program Flow | 10% | - Use break and continue statements - Use Java control statements - Use if and if/else statements - Use for, while, and do/while loops - Use switch statements |
| Topic 8: Working with Java data types | 12% | - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Call methods on objects - Create and manipulate strings - Read or write to object fields - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Manipulate data using the StringBuilder class and its methods |
| Topic 9: Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance - Identify potential threading problems |
| Topic 10: Database Applications with JDBC | 5% | - Execute queries and process results - Use parameterized queries - Connect to a database using JDBC - Describe the advantages of using a connection pool |
| Topic 11: Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Implement polymorphism - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Use abstract classes and interfaces - Implement inheritance - Implement encapsulation |
| Topic 12: Secure Coding in Java SE Application | 5% | - Validate user input - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Secure sensitive data |
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