Learn how to convert between characters and their byte representation.


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The code below expects that you can create a character from a number. It’s already bad technically: is signed, while is unsigned (a is just 16 bits of UTF-16 encoded Unicode).

Int i =;
Char c = (char) i;

In Java, use Reader/Writer or CharsetDecoder instead, to convert between characters and their byte representation.


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Octavia Andreea Anghel is a senior PHP developer currently working as a primary trainer for programming teams that participate at national and international software-development contests. She consults on developing educational projects at a national level. She is a coauthor of the book “XML Technologies–XML in Java” (Albastra, ISBN 978-973-650-210-1), for which she wrote the XML portions. In addition to PHP and XML, she’s interested in software architecture, web services, UML, and high-performance unit tests.

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