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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 Java Streams to filter, transform and process data
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- 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
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Sort collections and arrays using Comparator and Comparable interfaces
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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 file system objects using java.nio.file API
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create, apply, and process annotations
- Create and use enumerations
- Read and write console and file data using I/O Streams
- Declare, use, and expose modules, including the use of services
- Initialize objects and their members using instance and static initialiser statements and constructors
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Understand variable scopes, apply encapsulation and make objects immutable
- Create and use subclasses and superclasses, including abstract classes
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Define and use fields and methods, including instance, static and overloaded methods
- Deploy and execute modular applications, including automatic modules
- Implement serialization and deserialization techniques on Java objects
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Working with Arrays and Collections
- Database Applications with JDBC
- Java Object-Oriented Approach
- Java Platform Module System
- Working with Java data types
- Java I/O API
- Annotations
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Use the Stream API to perform terminal operations - Describe the Stream interface and pipeline - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use functional interfaces with lambda expressions |
| Java Platform Module System | 10% | - Use jdeps to determine dependencies - Migrate applications to use modules - Deploy and execute modules - Declare module dependencies - Explain the concept of module exports and requires - Explain the default modules and class path |
| Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Search for elements in a collection - Iterate through a collection - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Sort elements in a collection |
| Concurrency | 10% | - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool |
| Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Use parameterized queries - Connect to a database using JDBC - Execute queries and process results |
| Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks - Secure sensitive data - Validate user input |
| Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables |
| Working with Java OOP | 15% | - Implement inheritance - Implement polymorphism - Use abstract classes and interfaces - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Create inner classes and use them within other classes |
| Controlling Program Flow | 10% | - Use Java control statements - Use switch statements - Use for, while, and do/while loops - Use if and if/else statements - Use break and continue statements |
| Exception Handling and Localization | 10% | - 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 - Describe the advantages of exception handling - Use assertions |
| I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Use NIO2 API to work with file systems and file attributes - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths |
