Final Variable Example in Java

//  Program to use final variable to Create constant.
class  FinalVar
{
final static double PI = 3.14159;

public static void main( String args[ ] )
{
 double r = 10.0, a;
 a = PI * r * r;
 System.out.println("Area of Circle : " + a);
}
}

Output:
Area of Circle : 314.159