What is Java?
Java coffee refers to coffee beans produced in the Indonesian island of Java.
The Dutch began cultivation of coffee trees on Java (part of the Dutch East Indies) in the 17th century; Java has exported coffee globally since. Agricultural systems in Java have changed considerably over time. A rust plague in the late 1880s killed off much of the plantation stocks in the Sukabumi area before spreading to Central Java and parts of East Java. The Dutch responded by replacing the Arabica firstly with Liberica (a tough, but somewhat unpalatable coffee) and later with Robusta. As of 2015 Java's old colonial-era plantations provide just a fraction of the coffee grown on the island; they produce primarily the higher-valued Arabica variety.
Also it is a computer program.
Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible. It is intended to let application developers "write once, run anywhere" (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of computer architecture. As of 2016, Java is one of the most popular programming languages in use,particularly for client-server web applications, with a reported 9 million developers.