Chapter 2: Lexical Structure - Java Language Tutorial

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The Unicode Character Set

Java programs are written using Unicode, so you can use Unicode characters anywhere in your Java program.
As you may know, a Unicode character consists of two bytes which makes is a 16-bit character. With a 16-bit character set it is possible to cover most of the languages and characters in the world.
Of course you can write your program with the usual 7-bit ASCII character set that is most commonly used in the English language, but they will be converted to the Unicode format.

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