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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 Java Streams to filter, transform and process data
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- 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
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Use generics, including wildcards
- 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:
- Deploy and execute modular applications, including automatic modules
- Create and use enumerations
- Initialize objects and their members using instance and static initialiser statements and constructors
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Declare, use, and expose modules, including the use of services
- Read and write console and file data using I/O Streams
- Implement serialization and deserialization techniques on Java objects
- Define and use fields and methods, including instance, static and overloaded methods
- Connect to and perform database SQL operations, process query results using JDBC API
Annotations
- Create, apply, and process annotations
- Create and use subclasses and superclasses, including abstract classes
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Handle file system objects using java.nio.file API
- Understand variable scopes, apply encapsulation and make objects immutable
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
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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:
- Create and use enumerations
- Initialize objects and their members using instance and static initialiser statements and constructors
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Define and use fields and methods, including instance, static and overloaded methods
- Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
- Create and use subclasses and superclasses, including abstract classes
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Understand variable scopes, apply encapsulation and make objects immutable
- Secure resource access including filesystems, manage policies and execute privileged code
- Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
| Annotations | 5% | - Apply standard annotations to classes and methods
- Create custom annotations
- Describe the purpose of annotations
|
| Controlling Program Flow | 10% | - Use switch statements
- Use for, while, and do/while loops
- Use if and if/else statements
- Use Java control statements
- Use break and continue statements
|
| I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files
- Use Path interface to manipulate file paths
- Use NIO2 API to work with file systems and file attributes
- Read and write console and file input/output using Java I/O system
|
| Exception Handling and Localization | 10% | - Describe the advantages of exception handling
- Use resource bundles and locale classes for internationalization
- Use assertions
- Create and throw custom exceptions
- Use standard exception classes
- Create try-catch blocks and understand exception propagation
|
| Working with Arrays and Collections | 8% | - Iterate through a collection
- Use generic types and diamond operator
- Create a list, set, map, or queue collection
- Filter a collection using lambda expressions
- Search for elements in a collection
- Sort elements in a collection
|
| Working with Streams and Lambda expressions | 13% | - Use functional interfaces with lambda expressions
- 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
|
| Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables
- Create and manipulate strings
- Read or write to object fields
- Explain an object's lifecycle (creation, dereferencing via garbage collection)
- Manipulate data using the StringBuilder class and its methods
- Declare and initialize variables
- Call methods on objects
|
| Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks
- Prevent Denial of Service (DoS) attacks
- Secure sensitive data
- Validate user input
|
| Java Platform Module System | 10% | - Deploy and execute modules
- Explain the concept of module exports and requires
- Explain the default modules and class path
- Use jdeps to determine dependencies
- Migrate applications to use modules
- Declare module dependencies
|
| 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
|
| Concurrency | 10% | - Create worker threads using Runnable and Thread objects
- Use ExecutorService to concurrently execute tasks
- Use synchronized blocks and the volatile keyword
- Identify potential threading problems
- Use java.util.concurrent atomic classes and ForkJoinPool
- Use parallel streams to improve performance
|
| Working with Java OOP | 15% | - Use abstract classes and interfaces
- Implement polymorphism
- Implement inheritance
- Apply the final keyword to classes, methods, and fields
- Create inner classes and use them within other classes
- Apply the static keyword to methods and fields
- Implement encapsulation
|