Java

When referring to coffee, this term is used in casual, colloquial settings. It carries a cozy or energetic connotation and is rarely found in formal writing or professional menus, where "coffee" remains the standard. Because it is used as a mass noun in this sense, it is treated as uncountable.

In technical and geographical contexts, the word is a proper noun. As a programming language or an Indonesian island, it is always capitalized and does not take a plural form. Using "javas" in these contexts would be grammatically incorrect.