java - BlueJ: Creating an Object using another Object/Class -

so want sort of quick process initialize objects using different class.

so need method makes objects if click on

new [class name]

when right click class of object.

i tried best using [class] [objectname] = new [class]() - method

e.g.

bicycle mountainbike = new bicycle()

but nothing pops , can't use methods object tried create (console).

also: have put method?

ANy