Question

A. Create a new Class called "Lab6-3"
B. Declare variables for the radius, perimeter, and area.
C. Initialize perimeter and area to zero.
D. Initialize radius to a number of your choice.
E. Calculate perimeter and area.
F. Print the perimeter and area on separate lines.

Answer 1

// A. Create a new Class called "Lab6-3"
public class Lab6_3 {

    public static void main(String[] args) {
        // B. Declare variables for the radius, perimeter, and area.
        double radius, perimeter, area;

        // C. Initialize perimeter and area to zero.
        perimeter = 0;
        area = 0;

        // D. Initialize radius to a number of your choice.
        radius = 10;

        // E. Calculate perimeter and area.
        perimeter = 2 * Math.PI * radius;
        area = Math.PI * radius * radius;

        // F. Print the perimeter and area on separate lines.
        System.out.println("Area = " + area);
        System.out.println("Perimeter = " + perimeter);
    }
}