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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 pdf:
- Use generics, including wildcards
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Use Java Streams to filter, transform and process data
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Sort collections and arrays using Comparator and Comparable interfaces
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
Average Salary of Java SE 11 Developer Exam Number: 1Z0-819 Certified Professionals
The average salary is between $71k and $103k.
Who should take the Java SE 11 Developer Exam Number: 1Z0-819
This exam helps students to understand the basic relational database concepts. Moreover, it will teach the students about data modeling concepts, building Entity Relationship Diagrams (ERDs), and mapping ERDs. Moreover, with this project-based learning techniques, students will be able to create and work with projects to design, implement, and demonstrate a database solution for a business or organization.
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: Working with Streams and Lambda expressions | 13% | - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams |
| Topic 2: Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Identify potential threading problems |
| Topic 3: Working with Java data types | 12% | - Create and manipulate strings - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Read or write to object fields - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects |
| Topic 4: Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use Java control statements - Use break and continue statements - Use switch statements - Use if and if/else statements |
| Topic 5: Java Platform Module System | 10% | - Explain the concept of module exports and requires - Explain the default modules and class path - Declare module dependencies - Deploy and execute modules - Use jdeps to determine dependencies - Migrate applications to use modules |
| Topic 6: Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement polymorphism - Create inner classes and use them within other classes - Implement inheritance - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Apply the static keyword to methods and fields |
| Topic 7: Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Validate user input - Prevent SQL injection and other attacks |
| Topic 8: I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes - Use Stream API with files |
| Topic 9: Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Search for elements in a collection - Use generic types and diamond operator - Iterate through a collection - Create a list, set, map, or queue collection - Sort elements in a collection |
| Topic 10: Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Topic 11: Database Applications with JDBC | 5% | - Use parameterized queries - Execute queries and process results - Connect to a database using JDBC - Describe the advantages of using a connection pool |
| Topic 12: Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Create and throw custom exceptions - Use standard exception classes - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Use assertions |
