## Hierarchy Browser

The Hierarchy Browser shows multiple level relationships between entities. All relationships are multi-level and are shown to the top or bottom of their respective tree unless a level option is set in the preferences. The following is an invocation view for a method:

Understand for Java offers hierarchical information about the following types of relationships:

- Callby - view of who calls a given entity.
- Invocation - who this entity calls.
- Extends - shows which classes extend this class.
- Extended By - shows which classes are extended by this class.

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