coffee vs java

coffee and java both are nouns.

Word	Noun	Adjective	Verb	Adverb
coffee	Yes	No	No	No
java	Yes	No	No	No

As nouns, coffee and java are synonyms defined as:

coffee and java: a beverage consisting of an infusion of ground coffee beans

coffee (noun)	java (noun)
a medium brown to dark-brown color	a beverage consisting of an infusion of ground coffee beans
a beverage consisting of an infusion of ground coffee beans
a seed of the coffee tree; ground to make coffee
any of several small trees and shrubs native to the tropical Old World yielding coffee beans