java - How do you use anonymous objects with the factory pattern? -

i have method so:

public class foofactory {     public foo createnewfoo(){         return new foo();     } } 

now if this:

foofactory foofactory = new foofactory(); foo foo = foofactory.createnewfoo(); 

it'll work fine. however, if try :

new foo() = foofactory.createnewfoo(); 

it doesn't seem work @ all. says "variable expected".

i understand new foo() in itself, creates new foo object, if use factory, should override anonymous object new foo object.

i've tried creating arraylist holds foo's , doing

arraylist.add(new foo()); arraylist.get(0) = foofactory.createnewfoo(); 

it still says "variable expected". why saying that?

foo foo = new foo(); foo otherfoo = foo; 

this works fine, don't understand why can't make factory work anonymous object.

i tried searching online, got no search results, tells me i'm making ridiculous mistake/using factory pattern wrong.

equals assignment operator.

targetofmyassignment = thingimassigning; 

new foo() statement creates object. it producer. can't assign it, it's not variable reference. variable references, foo foo =, consumers. arraylist.get(0) producer. statement, constructor, provides value, not reference assign to. arraylist.add(object) consumer.

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i think misunderstand anonymous type is; anonymous type 1 override or of it's behavior in-line, specifying new behavior after class declaration {}. example:

runnable r = new runnable() {   public void run() {     // code   } }; 

you need anonymous type because runnable interface, there's no behavior defined run(), runnable r = new runnable(); won't compile.