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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:
- Handle text using String and StringBuilder classes
- Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting
- Use local variable type inference, including as lambda parameters
Oracle 1Z0-819 exam covers various topics such as Java Classes, Interfaces, and Objects, Lambda Expressions, Generics and Collections, Exceptions and Assertions, Module System, Concurrency, JDBC API, Annotations, I/O Fundamentals, and many more. 1Z0-819 exam consists of 80 multiple-choice questions, and the candidate will have 180 minutes to complete the exam. The Oracle 1Z0-819 certification is intended for Java developers who want to enhance their skills and knowledge in Java SE 11 and demonstrate their expertise to potential employers or clients.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| I/O (Fundamentals and NIO2) | 7% | - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use NIO2 API to work with file systems and file attributes |
| Exception Handling and Localization | 10% | - Create try-catch blocks and understand exception propagation - Use standard exception classes - Use assertions - Create and throw custom exceptions - Describe the advantages of exception handling - Use resource bundles and locale classes for internationalization |
| Working with Java OOP | 15% | - Apply the final keyword to classes, methods, and fields - Implement inheritance - Use abstract classes and interfaces - Implement encapsulation - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Implement polymorphism |
| Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Controlling Program Flow | 10% | - Use switch statements - Use if and if/else statements - Use Java control statements - Use for, while, and do/while loops - Use break and continue statements |
| Working with Arrays and Collections | 8% | - Sort elements in a collection - Create a list, set, map, or queue collection - Search for elements in a collection - Filter a collection using lambda expressions - Use generic types and diamond operator - Iterate through a collection |
| Working with Streams and Lambda expressions | 13% | - Use the Stream API to perform terminal operations - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions - Use method references with streams |
| Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results |
| Java Platform Module System | 10% | - Use jdeps to determine dependencies - Migrate applications to use modules - Explain the default modules and class path - Declare module dependencies - Explain the concept of module exports and requires - Deploy and execute modules |
| Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Validate user input - Secure sensitive data |
| Working with Java data types | 12% | - Read or write to object fields - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Declare and initialize variables |
| Concurrency | 10% | - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use ExecutorService to concurrently execute tasks |
