Java (Indonesian: Jawa) is an island of Indonesia and the site of its capital city, Jakarta. Once the centre of powerful Hindu kingdoms, Islamic sultanates, and the core of the colonial Dutch East Indies, Java now plays a dominant role in the economic and political life of Indonesia. Home to a population of 130 million in 2006, it is the most populous island in the world, ahead of Honshū, the main island of Japan. Java is also one of the most densely populated regions on Earth.

Formed mostly as the result of volcanic events, Java is the 13th largest island in the world and the fifth largest island in Indonesia. A chain of volcanic mountains forms an east-west spine along the island. It has three main languages, though Javanese is dominant and is the native language of 60 million people in Indonesia, most of whom live on Java. Most residents are bilingual, with Indonesian as their second language. While the majority of Javanese are Muslim, Java has a diverse mixture of religious beliefs and cultures.

Etymology
The origins of the name ‘Java’ are not clear. One possibility is that early travellers from India named the island after the jáwa-wut plant, which was said to be common in the island during the time, and that prior to Indianization the island had different names.There are other possible sources: the word jaú and its variations mean “beyond” or “distant”.And, in Sanskrit yava means barley, a plant for which the island was famous.Other source states that the “Java” word is derived from a Proto-Austronesian root word, meaning ‘home’.

Outsiders often referred to Java and the neighboring islands by the same name, or used names inconsistently for different islands. For example, Marco Polo refers to neighbouring Sumatra as “little Java”.

Geography
Java lies between Sumatra to the west and Bali to the east. Borneo lies to the north and Christmas Island to the south. It is the world’s 13th largest island.

Java is almost entirely of volcanic origin; it contains no fewer than thirty-eight mountains forming an east-west spine which have at one time or another been active volcanoes. The highest volcano in Java is Mount Semeru (3,676 m). The most active volcano in Java and also in Indonesia is Mount Merapi (2,968 m). Further mountains and highlands help to split the interior into a series of relatively isolated regions suitable for wet-rice cultivation; the rice lands of Java are among the richest in the world.Java was the first place where Indonesian coffee was grown, starting in 1699. Today, Coffea arabica is grown on the Ijen Plateau by small-holders and larger plantations.

The area of Java is approximately 139,000km2.The island’s longest river is the 600 km long Bengawan Solo River.The island is administratively divided into four provinces (Banten, West Java, Central Java, and East Java), one special region (Yogyakarta), and one special capital district (Jakarta).

Ethnicity and culture
Despite its large population and in contrast to the other larger islands of Indonesia, Java is comparatively homogeneous in ethnic composition. Only two ethnic groups are native to the island — the Javanese and Sundanese. A third group is the Madurese, who inhabit the island of Madura off the north east coast of Java, and have immigrated to East Java in large numbers since the 18th century.The Javanese comprise about two-thirds of the island’s population, while the Sundanese and Madurese account for 20% and 10% respectively.

Four major cultural areas exist on the island: the kejawen or Javanese heartland, the north coast of the pasisir region, the Sunda lands of West Java, and the eastern salient, also known as Blambangan. Madura makes up a fifth area having close cultural ties with coastal Java. The kejawen Javanese culture is the island’s most dominant. Java’s remaining aristocracy are based here, and it is the region from where the majority of Indonesia’s army, business, and political elite originate. Its language, arts, and etiquette are regarded as the island’s most refined and exemplary.The territory from Banyumas in the west through to Blitar in the east and encompasses Indonesia’s most fertile and densely populated agricultural land.

In the southwestern part of Central Java, usually named the Banyumasan region, a cultural mingling occurred; bringing together Javanese culture and Sundanese culture to create the Banyumasan culture. In the central Javanese court cities of Yogyakarta and Surakarta, contemporary kings trace their lineages back to the pre-colonial Islamic kingdoms that ruled the region, making those places especially strong repositories of classical Javanese culture. Classic arts of Java include gamelan music and wayang puppet shows.

Java was the site of many influential kingdoms in the Southeast Asian region,and as a result, many literary works have been written by Javanese authors. These include Ken Arok and Ken Dedes, the story of the orphan who usurped his king, and married the queen of the ancient Javanese kingdom; and translations of Ramayana and Mahabharata. Pramoedya Ananta Toer is a famous contemporary Indonesian author, who has written many stories based on his own experiences of having grown up in Java, and takes many elements from Javanese folklore and historical legends.