Java (French: [ʒa.va]) is a dance which was developed in France in the early part of the 20th century.
Mainly performed in French bal-musette between 1910 and 1960, the dance was largely conceived due to popular demand for a new type of waltz, in particular, one which was easier, faster, more sensual, and would not require a dance hall as large as those typically used for waltzes.
Naturally, this led some of the more respectable bal-musette dance halls banning java.
A java is danced during a key scene at a working class café in Jean Vigo's film L'Atalante (1934).
Composer Maurice Jaubert arranged his java melody for player piano; it recurs later in the soundtrack as a refrain for accordion.