# Creating a Java class

In this section, you will create a new Java class and add methods using code generation actions.

1. In the Package Explorer view, select the JUnit project. From the project's context menu, select New > Package or click the New Java Package button in the toolbar.
2. In the Name field, type test as the name for the new package. Then click Finish.
3. In the Package Explorer view, select the new test package and click the New Java Class button in the toolbar.
4. Make sure that JUnit appears in the Source Folder field and that test appears in the Package field. In the Name field, type MyTestCase.

5. Click the Browse button next to the Superclass field.
6. In the Choose a type field in the Superclass Selection dialog, type Test to narrow the list of available superclasses.

7. Select the TestCase class and click OK.
8. Select the checkbox for Constructors from superclass.
9. Click Finish to create the new class.

10. The new file is opened in the editor. It contains the new class, the constructor and comments. You can select options for the creation and configuration of generated comments in the Java preferences (Window > Preferences > Java > Code Style > Code Templates).
11. In the Outline view select the new class MyTestCase. Open the context menu and select Source > Override/Implement Methods....

12. In the Override Methods dialog, check setUp() and tearDown() and click OK. Two methods are added to the class.

13. Change the body of setUp() to `container= new Vector();`
14. container and Vector are underlined with a problem highlight line as they cannot be resolved. A light bulb appears on the marker bar. Set the cursor inside Vector and press `Ctrl+1` (or use Edit > Quick Fix from the menu bar). Choose Import 'Vector' (java.util).This adds the missing import declaration.

    Set the cursor inside container and press `Ctrl+1`. Choose Create field 'container' to add the new field.

15. In the Outline view, select the class MyTestCase. Open the context menu and select Source > Generate Getter and Setter....

16. The Generate Getter and Setter dialog suggests that you create the methods getContainer and setContainer. Select both and click OK. A getter and setter method for the field container are added.

17. Save the file.
18. The formatting of generated code can be configured in Window > Preferences > Java > Code Style > Code Formatter. If you use a prefix or suffix for field names (e.g. fContainer), you can specify this in Window > Preferences > Java > Code Style > Fields so that generated getters and setters will suggest method names without the prefix or suffix.

Java views
Java editor

Using quick fix
Creating Java elements
Overriding a method using the Hierarchy view
Generating getters and setters

New Java Class wizard
Source actions
Quick Fix
Override Methods dialog
Generate Getter and Setter dialog
Code formatter preference page
Code generation preference page