#ASCII CODEPOINTS CODE#

Java programming language has extensive support for different charset and character encoding, by default it uses UTF-8. In short, you just need a character encoding scheme to interpret a stream of bytes, in the absence of character encoding, you cannot show them correctly.

#ASCII CODEPOINTS CODE#

UTF stands for Unicode Transformation, which defines an algorithm to map every Unicode code point to a unique byte sequence.įor example, for character A, which is Latin Capital A, Unicode code point is U+0041, UTF-8 encoded bytes are 41, UTF-16 encoding is 0041, and Java char literal is 'A'. 16-bit for UTF-16, 32 bits for UTF-32 and 8-bit for UTF-8). On the other hand UTF-16, UTF-32 and UTF-8 are encoding schemes, which describe how these values (code points) are mapped to bytes (using different bit values as a basis e.g. A character set is nothing but list of characters, where each symbol or character is mapped to a numeric value, also known as code points. Since there are so many characters and symbols in the world, a character set is required to support all those characters. There are two things, which are important to convert bytes to characters, a character set and an encoding. Now, let's start with what is character encoding and why it's important? Well, character encoding is an important concept in the process of converting byte streams into characters, which can be displayed. On the other hand, UTF-32 is a fixed-width encoding scheme and always uses 4 bytes to encode a Unicode code point. BTW, if the character's code point is greater than 127, the maximum value of byte then UTF-8 may take 2, 3 o 4 bytes but UTF-16 will only take either two or four bytes. UTF-8 uses a minimum of one byte, while UTF-16 uses a minimum of 2 bytes. The main difference between UTF-8, UTF-16, and UTF-32 character encoding is how many bytes it requires to represent a character in memory.

Ascii codepoints