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Certification Path for Java SE 11 Developer Exam Number: 1Z0-819
Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
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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:
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Use generics, including wildcards
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Sort collections and arrays using Comparator and Comparable interfaces
- Use Java Streams to filter, transform and process data
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Controlling Program Flow | 10% | - Use for, while, and do/while loops - Use if and if/else statements - Use switch statements - Use break and continue statements - Use Java control statements |
| Topic 2: Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Topic 3: Working with Java OOP | 15% | - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Implement inheritance - Implement polymorphism - Create inner classes and use them within other classes |
| Topic 4: Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Secure sensitive data - Validate user input - Prevent SQL injection and other attacks |
| Topic 5: I/O (Fundamentals and NIO2) | 7% | - 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 - Use Path interface to manipulate file paths |
| Topic 6: Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Use assertions - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Use standard exception classes - Create and throw custom exceptions |
| Topic 7: Database Applications with JDBC | 5% | - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool |
| Topic 8: Working with Arrays and Collections | 8% | - Iterate through a collection - Use generic types and diamond operator - Search for elements in a collection - Create a list, set, map, or queue collection - Sort elements in a collection - Filter a collection using lambda expressions |
| Topic 9: Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Read or write to object fields - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects - Create and manipulate strings - Declare and initialize variables - Manipulate data using the StringBuilder class and its methods |
| Topic 10: Working with Streams and Lambda expressions | 13% | - Use the Stream API to perform terminal operations - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use functional interfaces with lambda expressions - Use method references with streams - Filter a collection using lambda expressions - Describe the Stream interface and pipeline |
| Topic 11: Concurrency | 10% | - Identify potential threading problems - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword - Use parallel streams to improve performance |
| Topic 12: 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 |
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