CharMap is a Java 5.0 graphical (GUI) application to display Unicode characters or glyphs in text fonts, and copy those characters to the system clipboard. Its major purpose is as a visual accessory ...

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.

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.