# Navigate to a Java element's declaration

1. Open the junit.samples.money.MoneyTest.java file in the Java editor.
2. On the first line of the MoneyTest class declaration, select the superclass TestCase and either
   - from the menu bar select Navigate > Open Declaration or
   - press `F3`.

   The TestCase class opens in the editor area and is also represented in the Outline view.
   Note: This command also works on methods and fields.

3. With the TestCase.java editor open and the class declaration selected:
   - from the menu bar select Navigate > Open Type Hierarchy or
   - press `F4`.

4. The Hierarchy view opens with the TestCase class displayed.

   Note: You can also open editors on types and methods in the Hierarchy view.

Using the Hierarchy view
Opening a type hierarchy on a Java element
Opening a type hierarchy on the current text selection
Opening an editor for a selected element

Type Hierarchy View