PlainText is a Java 1.4 graphical (GUI) application to convert Unicode characters to plain text characters, for example, to convert left and right quotation marks into plain quotes for web pages.

The UTF-16 format is standard in Java, C# and in many Windows technologies. Not all sequences of bytes are valid Unicode strings. It is unsafe to use Unicode strings in UTF-8 and UTF-16LE without ...

Even though the introduction of Unicode technically solved this problem, you can still encounter situations in which some or all of your Unicode characters will not display properly in Java programs.

You can only represent the ASCII subset of Unicode within the range of a byte. If you wanted to filter one or more Unicode characters from a Java stream, you're hosed!