View class contents
The Project Tree does not display the contents of a class by default. This enables you to focus your configuration efforts on a specific area of the project hierarchy.
An icon to the right of a class tells you whether the class contents are visible.
The Show Class Contents icon means that the class contents are not displayed. Clicking this icon shows the class contents.
The Hide Class Contents icon means that the class contents are displayed. Clicking this icon hides the class contents.
You can display the contents of a class by following these steps: