Java uses the encoding of Unicode characters. The Unicode character holds 2 bytes for a character where as ASCII supports only a specific range as 1-byte for a character. Unicode gives a total of 1,114,112 possible characters. But ASCII gives only 128 characters.Click to see full answer. Herein, does Java follow Ascii or Unicode?Java is Unicode. But the first set of characters in Unicode are ASCII, specifically US-ASCII. So since ASCII is a subset of Unicode, its trivial to do work in ASCII within Java. But writing ASCII only code in java is bad form unless its just quick and dirty.Furthermore, why do we use Unicode in Java? The central objective of Unicode is to unify different language encoding schemes in order to avoid confusion among computer systems that uses limited encoding standards such as ASCII, EBCDIC etc. Java Unicode: The evolution of Java was the time when the Unicode standards had been defined for very smaller character set. In this manner, what is difference between Ascii and Unicode? The main difference between the two is in the way they encode the character and the number of bits that they use for each. ASCII originally used seven bits to encode each character. In contrast, Unicode uses a variable bit encoding program where you can choose between 32, 16, and 8-bit encodings.What is Unicode in Java?Unicode System in java. Unicode is a universal international standard character encoding that is capable of representing most of the world’s written languages. Unicode is a standard designed to consistently and uniquely encode characters used in written languages throughout the world.