Nick's experimental CS108's front-end to the Java class docs using Javascript. The idea is to make the javadocs more quickly accessible compared to the official Sun Docs. Just type a classname or part of a classname -- such as string or except or frame. Searching for the empty string lists all Java classes, bwhich is a bit slow. All links will open in their own window.
Commonly needed docs: String Integer Collection ArrayList HashMap Arrays Collections JComponent