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 Chinese (Simplified) Language
According to Wikipedia.org, Chinese is the official language of China and Hong Kong. The simplified characters are one of the major written scripts in China. These characters are not only used in China but other places in the world. Most of the children studying in Malaysia and Singapore all know simplified Chinese. They are also used in Hong Kong, Taiwan and even Japan. The traditional characters have been a choice in books and texts majorly. However in the modern era it covers the majority of contemporary Chinese text. In China the dialect of Chinese people is known as mandarin. It is studied with simplified characters of Chinese. You will be surprised to know that simplified characters are not used for writing. About 1.3 billion people in the world speak Chinese language.