IDEA (或 Studio ) 文件名颜色分别表示的意思
在IDEA 编辑器里，有着各种颜色的文件， 它们代表的意思是什么呢？ 如下
其实，这主要和你的版本控制工具相关 绿色，已经加入控制暂未提交 红色，未加入版本控制 蓝色，加入，已提交，有改动 白色，加入，已提交，无改动 灰色：版本控制已忽略文件。 另外： 些文件名的颜色都是可以修改的，颜色的意义是根据你的设置看的。 1、打开settings 2、Editor
3、File Status所有的文件颜色都在这里设置。
Symbols
In this section:
Common
| Icon | Description |
|---|---|
 | Class |
 | Abstract 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 for details. |
 | Java class . |
 | |
 | Method |
 | Abstract method |
 | Field |
 | Variable |
 | Property |
 | Parameter |
 | Element |
 | Directory |
 | Module |
 | Group of modules |
 | Package |
 | |
 | |
 | |
 | |
 | |
 | |
 | |
| Visibility modifiers | |
 | Read-only class, e.g. from a jar of an external library. |
 | private |
 | protected |
 | package protected |
 | static |
 | public |
Data Sources
| Icon | Description |
|---|---|
 | DB data source. Also, DBMS-specific icons are used:
|
 | DB data source with the read-only status, e.g.  for DB2. |
 | DDL data source |
 | Schema |
 | Table |
 | View |
 | Column |
 | A NOT NULL column |
 | Column with a primary key |
 | Column with a foreign key |
 | Column with an index |
 | Primary key |
 | Foreign key |
 | Index |
 | Trigger |
 |
