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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 a Java array and List, Set, Map and Deque collections, including convenience methods
- Use Java Streams to filter, transform and process data
- Sort collections and arrays using Comparator and Comparable interfaces
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Use generics, including wildcards
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| 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 |
| Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Create and manipulate strings - Declare and initialize variables |
| Working with Arrays and Collections | 8% | - Search for elements in a collection - Iterate through a collection - Sort elements in a collection - Use generic types and diamond operator - Filter a collection using lambda expressions - Create a list, set, map, or queue collection |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Execute queries and process results - Describe the advantages of using a connection pool - Use parameterized queries |
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Java Platform Module System | 10% | - Migrate applications to use modules - Explain the concept of module exports and requires - Deploy and execute modules - Explain the default modules and class path - Declare module dependencies - Use jdeps to determine dependencies |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use break and continue statements - Use for, while, and do/while loops - Use Java control statements - Use switch statements |
| Working with Java OOP | 15% | - Implement inheritance - Implement polymorphism - Create inner classes and use them within other classes - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Implement encapsulation - Apply the final keyword to classes, methods, and fields |
| Exception Handling and Localization | 10% | - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Use standard exception classes - Create and throw custom exceptions - Use assertions |
| 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 |
| Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations |
| Concurrency | 10% | - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks |
