In Java Given the following CircleDriver.java file. Provide an accompanying Circle.java file. Specifically, your Circle class should contain: • One instance variable – radius • A method named setRadius that assigns the passed-in radius value to the radius instance variable. • A method named initialize that prompts the user for a radius value and then assigns the entered value to the radius instance variable. • A method named printCircleData that uses the circle’s radius to calculate the circle’s diameter, circumference, and area. Use the Java API constant Math.PI for the value of π. Print the circle’s radius, diameter, circumference, and area. There are many ways to implement printCircleData. In the interest of gaining experience with local variables, declare and use local variables for storing the circle’s diameter, circumference, and area. The Driver: /**************************************************** * CircleDriver.java * * This is the driver for the Circle class. *****************************************************/ public class CircleDriver { public static void main(String[] args) { Circle circle; circle = new Circle(); circle.initialize(); circle.printCircleData(); circle.setRadius(5); circle.printCircleData(); } // end main } // end class CircleDriver Sample session: Enter a radius value: 4 Radius = 4.0 Diameter = 8.0 Circumference = 25.132741228718345 Area = 50.26548245743669 Radius = 5.0 Diameter = 10.0 Circumference = 31.41592653589793 Area = 78.53981633974483
In Java
Given the following CircleDriver.java file. Provide an accompanying Circle.java
file. Specifically, your Circle class should contain:
• One instance variable – radius
• A method named setRadius that assigns the passed-in radius value to the radius
instance variable.
• A method named initialize that prompts the user for a radius value and then
assigns the entered value to the radius instance variable.
• A method named printCircleData that uses the circle’s radius to calculate the
circle’s diameter, circumference, and area. Use the Java API constant Math.PI
for the value of π. Print the circle’s radius, diameter, circumference, and area. There
are many ways to implement printCircleData. In the interest of gaining
experience with local variables, declare and use local variables for storing the
circle’s diameter, circumference, and area.
The Driver:
/****************************************************
* CircleDriver.java
*
* This is the driver for the Circle class.
*****************************************************/
public class CircleDriver
{
public static void main(String[] args)
{
Circle circle;
circle = new Circle();
circle.initialize();
circle.printCircleData();
circle.setRadius(5);
circle.printCircleData();
} // end main
} // end class CircleDriver
Sample session:
Enter a radius value: 4
Radius = 4.0
Diameter = 8.0
Circumference = 25.132741228718345
Area = 50.26548245743669
Radius = 5.0
Diameter = 10.0
Circumference = 31.41592653589793
Area = 78.53981633974483
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 2 images
