| Javapfeifgans | Nominativ, Singular | nominative case, singular | |
| Javapfeifganse | Genitiv, Singular | genitive case, singular | |
| Javapfeifgansen | Dativ, Singular | dative case, singular | |
| Javapfeifgans(e)s | Akkusativ, Singular | accusative case, singular | |
| Javapfeifganser | Nominativ, Plural | nominative case, plural | |
| Javapfeifgansern | Genitiv, Plural | genitive case, plural | |
| Javapfeifgansn | Dativ, Plural | dative case, plural |