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Oracle 1Z0-819日本語 Exam Syllabus Topics:

Section

Weight

Objectives

Working with Java OOP

15%

- Implement inheritance
- Apply the static keyword to methods and fields
- Apply the final keyword to classes, methods, and fields
- Implement encapsulation
- Use abstract classes and interfaces
- Implement polymorphism
- Create inner classes and use them within other classes

Working with Java data types

12%

- Create and manipulate strings
- Manipulate data using the StringBuilder class and its methods
- Read or write to object fields
- Differentiate between object reference variables and primitive variables
- Declare and initialize variables
- Explain an object's lifecycle (creation, dereferencing via garbage collection)
- Call methods on objects

Secure Coding in Java SE Application

- Prevent SQL injection and other attacks
- Secure sensitive data
- Validate user input
- Prevent Denial of Service (DoS) attacks

Exception Handling and Localization

10%

- Use standard exception classes
- Create try-catch blocks and understand exception propagation
- Create and throw custom exceptions
- Describe the advantages of exception handling
- Use resource bundles and locale classes for internationalization
- Use assertions

Concurrency

10%

- Identify potential threading problems
- Use parallel streams to improve performance
- Create worker threads using Runnable and Thread objects
- Use synchronized blocks and the volatile keyword
- Use java.util.concurrent atomic classes and ForkJoinPool
- Use ExecutorService to concurrently execute tasks

Database Applications with JDBC

- Execute queries and process results
- Connect to a database using JDBC
- Describe the advantages of using a connection pool
- Use parameterized queries

I/O (Fundamentals and NIO2)

- Use Path interface to manipulate file paths
- Use NIO2 API to work with file systems and file attributes
- Use Stream API with files
- Read and write console and file input/output using Java I/O system

Controlling Program Flow

10%

- Use for, while, and do/while loops
- Use switch statements
- Use break and continue statements
- Use Java control statements
- Use if and if/else statements

Java Platform Module System

10%

- Declare module dependencies
- Use jdeps to determine dependencies
- Deploy and execute modules
- Explain the default modules and class path
- Migrate applications to use modules
- Explain the concept of module exports and requires

Annotations

- Describe the purpose of annotations
- Create custom annotations
- Apply standard annotations to classes and methods

Working with Arrays and Collections

- Sort elements in a collection
- Search for elements in a collection
- Create a list, set, map, or queue collection
- Use generic types and diamond operator
- Filter a collection using lambda expressions
- 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
- Filter a collection using lambda expressions
- Use method references with streams
- Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods

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