The compiler allows a new array syntax, with []s before
the identifier, in declarations. But not in parameter lists.
It should allow them in parameter lists, too.
The alpha3 compiler gives this message, for example:
arrayHierarchy.java:20: Identifier expected.
public static void main ( String[] x ) {
^
1 error
ganymede% which javac
/usr/local/java/1.0a3/bin/javac