Why can't I use another object's method by using dot notation without declaring it with another name

[spar...@gmail.com]

Pretty much summerized by the title. Why do I have to declaring the object as something else before using its method? For example:

I have to use:

PeluruUser peluru = new PeluruUser();

               getWorld().addObject(peluru, getX(), getY());

               peluru.setRotation(getRotation());

But I can't use:

getWorld().addObject(peluru, getX(), getY());

               peluru.setRotation(getRotation());

Am I missing something here? This seems stupid to me.

[Wen Bei]

Well, if you haven't created the object via new, how is it going to find the object?

[Wen Bei]

Also, in addObject the first parameter should be the class, so you have to declare what peluru is before you use it. Try using PeluruUser.class instead

[spar...@gmail.com]

I think logically if I declare that the mothod exists in the world class, it should work.