java [Options] [Class] [args] as we can excecute java command without giving anything else .In this case we will get the possible options with java command. [ June 19, 2007: Message edited by: raj malhotra ]
the things in square brackets say they are optional. this command is issued to execute a java file. without specifying the class name how can you execute? the "class" in the quote refers to class name of the javafile.