Because this doesn't make sense.

Yes.  But Object doesn't have a member "Var_Name", so it makes no sense to
refer to it.

Let's start by suggesting that you adhere to the Java naming conventions to
make the examples clearer.  Class names start with an upper-case letter,
variable and method names start with a lower-case letter.  Eschew underscores.

Don't put implementation ("List") into variable names.

List foos = new LinkedList(); // or new ArrayList() or ...

You didn't show generics, though you should have, so I'm going raw for a moment.

foos.add( new Foo( "first" ));
foos.add( new Foo( "second"));
etc.

later,

Foo foo = (Foo) foos.get( 0 );
String name = foo.getName();

The problem is, someone might add() a non-Foo to the List.  Then the class
cast would blow up.  Generics to the rescue:

List <Foo> foos = new LinkedList <Foo> ();
foos.add( new Foo( "first" ));
foos.add( new Foo( "second"));
etc.

Now you can skipo the class cast, because the compiler won't let a non-Foo
into the list.

Foo foo = foos.get( 0 );
String name = foo.getName();

BGTW, LinkedList isn't as fast at a get() as other types of List.

<http://java.sun.com/javase/6/docs/api/java/util/LinkedList.html>