Code Example 1:
public class MathPI { public static void main(String args[]) { double pi = Math.PI; System.out.println(pi); System.out.println(pi*2); } }
The Above Code Outputs
3.141592653589793 6.283185307179586
Code Example 2:
public class MathPI { public static void main(String args[]) { final double PI = 3.1415; double r = 5; double CircleArea = PI * (r * r); double CircleCircumference = 2 * (PI * r); System.out.println("Area : " + CircleArea); System.out.println("Circumference : " + CircleCircumference); } }
The Above Code Outputs
Area : 78.53750000000001 Circumference : 31.415000000000003