import

■ You must place import statements second after any package statement, but before any class statement.

■ You cannot place import statements within classes or after them. So no import statements at the bottom.

■ import statements are never actually required. You can explicitly specify the package for each occurrence of a class referenced in the program statements, if you wish. i.e.

The import approach works:

import java.util.*; or import java.util.Vector;

public class ImportApproach {

Vector V = new Vector( );

}

The explicit naming approach also works:

public class ExplicitApproach {

java.util.Vector V = new java.util.Vector( );

}