About Indonesian Language
According to Wikipedia.org, Indonesian is the official language of Indonesia. It belongs to the Malayo-Polynesian branch while the standard dialect is Malay. When Indonesia became independent they declared Indonesian as their official language in 1945. Indonesian is spoken by 23 million people while it is the second language of 140 million people. As most Indonesians are bilingual they know more than three languages. Besides Indonesia, this language is also spoken in the Netherlands, the Philippines, and Singapore. Several dialects are spoken in various areas. The northern dialect is known as Malay while the southern dialect is most commonly spoken in Indonesia. There are regional dialects that are spoken in both north and south of Indonesia. It consists of six vowels but the sound system is similar to Malay.
About Sinhala Language
According to Wikipedia.org, Sinhala is an Indo-Aryan language. It is primarily spoken by the Sinhalese people. The language is spoken in Sri Lanka. The Sinhala speakers form the largest ethnic group on the island. It is spoken by around 16 million. Sinhala is the first language by other people in Sri Lanka. The Sinhala script is one of the Brahmic scripts and is closely related to the Kadamba script. Sinhala is the official language of Sri Lanka. The language has played a major role in the development of Theravada Buddhist literature. Sinhala has the closest relatives in the form of the Vedda language. It is spoken by a minority of Sri Lankans. Sinhala origin comes from the Old Sinhala and has borrowed various aspects into the Indo-Aryan substrate. It is also similar to the Maldivian language.