# Class Code (User Defined Java Class)

![Class code panel](https://3411831820-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAYwCj9fPr1B2pjC11IOQ%2Fuploads%2Fgit-blob-4a69340617a11cd8d8dfd5216dc808b737e06ee2%2FPDITransStep_UserDefinedJavaClass_ClassCode.png?alt=media)

Add your defined Java code directly in the **Processor** tab in the **Class code** panel. You can create additional tabs for more code blocks by right-clicking and selecting **Add new**. This menu also includes options for copying a tab, setting a transformation class, or removing a class type.