Question: 1. Write a class called BitValue that represents binary digits that can be set to true or false. Create a driver class called Bits whose main method instantiates and sets a few bits to true.
2. Write a class called Circle that contains instance data that represents the circle's radius. Define the Circle constructor to accept and initialize the radius, and include getter and setter methods for the radius. Include methods that calculate and return the circumference and area of the sphere. Include a toString method that returns a one-line description of the circle. Create a driver class called MultiCircle, whose main method instantiates and updates several Circle objects. [Circumference = 2pr and Area = pr2].