I live in Java island
The term "
java" as a nickname for coffee comes from the Indonesian island of Java, one of the world's earliest and most famous coffee-growing regions.
In the 17th century, the Dutch introduced coffee cultivation to their colony in Java, and it became one of the primary sources of coffee for European and American markets. Since Java was a major exporter, the name"Java" became synonymous with coffee itself. Over time, English speakers began using "java" as a slang term for coffee, much like how "mocha" (originally from Yemen's Mocha port) also became associated with coffee.
Even though coffee today comes from many regions, the term "java" has stuck as a casual way to refer to a cup of coffee.