Java GuideJava is an island in Indonesia. Java is Indonesia's fifth-largest island. Its 130 million people make up 65% of Indonesia's entire population, and makes Java the most populated island in the world. HotelsFind hotels in Jakarta, Lembang, Yogyakarta, Semarang, Surabaya and more. JakartaJakarta is the capital and largest city of Indonesia, located on the northwest of the island of Java. BandungBandung is the capital city of West Java, and the third largest city in Indonesia after Jakarta and Surabaya. YogyakartaYogyakarta— despite the official spelling, the name is usually pronounced and not uncommonly written Jogjakarta or just Jogja — is a major tourist destination in Indonesia. West JavaWest Java) is the western third of the island of Java, Indonesia. Indonesian language, being official, is widely spoken and understood, and is the main language used in big cities and Jakarta metropolitan area. Central JavaCentral Java, including the Yogyakarta Special Region, covers the central third of the island of Java, Indonesia. East JavaEast Java covers the eastern third of the island of Java, Indonesia, as well as the island of Madura and several small offshore islands.