And yes, it isn't the same as AWT. If you know anything about AWT you will see that immediately as you read that tutorial. If you don't know anything about AWT then all you need to know is that Swing was designed as a better version of AWT about 8 years ago.
JFC is short for Java Foundation Classes, which encompass a group of features for building graphical user interfaces (GUIs) and adding rich graphics functionality and interactivity to Java applications. It is defined as containing the features shown in the table below.