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最新推荐文章于 2024-08-09 04:21:19 发布

转载最新推荐文章于 2024-08-09 04:21:19 发布 · 4.9k 阅读

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本文详细解析了Java类的不同类型，如抽象类、注解、枚举等，并介绍了Java类中常见的元素，如方法、字段、变量等。同时，文章还涵盖了Java类的访问修饰符、数据源图标、数据库元数据等概念。

Symbols

Icon	Description
	Class
	Abstract Java class
	Annotation
	Enumeration
	Exception
	Final Java class
	Interface
	Java class that contains declaration of the `main()` method.
	Test case
	Java class located out of the source root. Refer to the section Configuring Content Roots for details.
	Java class excluded from compilation.
	Method
	Abstract method
	Field
	Variable
	Property
	Parameter
	Element
	Directory
	Module
	Group of modules
	Package
	Source root
	Test root
	Excluded root
	Resources
	Test resources
	Generated source roots
	Generated test source roots
Visibility modifiers
	Read-only class, e.g. from a jar of an external library.
	private
	protected
	package protected
	static
	public

Icon	Description
	DB data source. Also, DBMS-specific icons are used: DB2 Derby H2 HSQLDB MySQL ODBC Oracle PostgreSQL SQL Server SQLite Sybase
	DB data source with the read-only status, e.g. for DB2.
	DDL data source
	Schema
	Table
	Column
	A `NOT NULL` column
	Column with a primary key
	Column with a foreign key
	Column with an index
	Primary key
	Foreign key
	Index
	View
	Stored procedure or function