When you create a class and do not provide a(n) ____, Java automatically supplies you with a default one.

Clicking a Dialog Box ________ button on the Ribbon opens a corresponding dialog box

A) Group B) Tab C) Launcher D) Header

You can use either a(n) ____ or a ____ to store the value of a logical expression.

A. float,double B. char, string C. int,bool D. float,string