What is true about music from the romantic period?

it was more precise and conformed than that of the classical period.

virtually all of the music is vocal or choral music.

it was longer and less constrained than the music of the classical period.

the only theme of the music was love.

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.