Positively Must Know About Unicode and Character Sets (No Excuses!). Java's String implementation internally use UTF-16, but we can get the encoding for many other charsets using the method ...

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.

you can still encounter situations in which some or all of your Unicode characters will not display properly in Java programs. This is the result of not configuring display objects correctly.