public class CircleCalculation2
1:
2:
3:
4: import java.util.*;
5:
6: /**
7: Program to determine area of a circle.
8: Author: Jane Q. Programmer.
9: E-mail Address: janeq@somemachine.etc.etc.
10: Programming Assignment 2.
11: Last Changed: October 7, 2006.
12: */
13:
14: public class CircleCalculation2
15: {
16: public static final double PI = 3.14159;
17:
18: public static void main(String[] args)
19: {
20: double radius; //in inches
21: double area; //in square inches
22: Scanner keyboard = new Scanner(System.in);
23:
24: System.out.println(
25: "Enter the radius of a circle in inches:");
26: radius = keyboard.nextDouble( );
27: area = 3.14159 * radius * radius;
28: System.out.println("A circle of radius " + radius + " inches");
29: System.out.println("has an area of " + area + " square inches.");
30: }
31:
32: }
33:
34: