Can we create a new class using any command rather then using the Menu Item Option in Studio

Hi, 

Can we create a new class in the studio using any command rather then using the Menu Item Option from Menu Bar in Studio . 

Requirement : Create/Draft a new class and able to extends the other classes using  a command in Cache Class .

In other words , I want to Dig in the Menu Item class from which Menu bar is created in studio and option are provided  Like New..., Open..., etc 

Thanks, 

Ravi