Use the Sources tab of the Module page to select the supported language level for Java and to configure the module contents.
The module contents are configured by adding and removing the module content roots as well as by assigning individual folders (within the content roots) to source folders, test source folders and also by excluding the folders.
Language level list
Use this list to select the Java language level for the module.
The available options correspond to JSDK versions.
You can select the level set for the project (the option <Use project language level>) or set an individual level for the module.
The left-hand pane
The left-hand pane shows the module content roots.
For each content root, a categorized view of the module folders is provided. The categories are the source folders, test source folders and excluded folders. The folders that don't belong to any of these categories are not shown in this view.
The individual folders within the categories are identified by their paths. The folder paths are all relative to the module root folder (content root).
The folder paths, functionally, are hyperlinks that let you jump to the corresponding folders in the tree shown in the right-hand pane.
If a module has more than one content root, selecting a content root in the left-hand pane also switches the tree view in the right-hand pane. That is, when you click somewhere within the content root area, the folder structure of this particular content root is shown in the right-hand pane.
The following table lists the controls available in the right-hand pane (icons) and describes their functions.
|Add Content Root||Use this icon to add another content root. Select the desired folder in the dialog that opens.|
|Remove Content Entry||Use this icon to remove the corresponding content root from the list of the content roots.|
|Set Package Prefix||Use this icon to open the Set Package Prefix dialog in which you can specify a package prefix for the selected source or test source folder.|
|Unmark||Use this icon to remove the folder from the corresponding category. As a result, the folder becomes "an ordinary folder", that is, not belonging to any specific category.|
The right-hand pane
The right-hand pane shows a tree of folders for a module content root. If the module has more than one content root, the structure shown corresponds to the content root selected in the left-hand pane.
The folders belonging to different categories have different colors.
The following table lists the available toolbar buttons (the Icon column) and explains their functions (the Description column). Note that the corresponding functions can also be accessed as the context menu commands. These are listed in the Command column.