Window > Show View > Other...
> General > Outline.The Outline view displays an outline of a structured file that is currently open in the editor area, and lists structural elements. The contents of the Outline view are editor specific. In the example below, which is for a Java source file, the structural elements are classes, fields, and methods. The contents of the toolbar are also editor specific.
To add the Outline view to the current perspective, click
Window > Show View > Other...
> General > Outline.