Java multiple classes

http://www.youtube.com/watch?v=XqTg2buXS5o&feature=player_profilepage#t=179s

     tuna tunaObject = new tuna();


Someone care to explain why you need to type "tuna" at the beginning and "tuna()" at the end if you already stated that you're going to use the tuna class at the beggining?
I think I understand the "tunaObject" is(the variable to which you will assign the new class in the main class, right?), but the "new" is still kind of ... I don't understand it either...
:/

>>38
Something like..

Tuna tunaObject = new Tuna();

Can be broken down like the following...

new Tuna() creates a new Tuna Object. Tuna tunaObject creates a 'reference variable' called tunaObject of type Tuna.