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( );

}