Passing arguments and returning values.

Posted by Stephen thangaraj at 19:01

Passing arguments and returning values.
class circle
{
        private int radius;
        public void setradius(int r)
        {
                radius = r;
        }
        public float calculate()
        {
                return 3.14f * radius * radius;
        }
        public static void main(String args[])
        {
                if (args.length < 1)
                {
                        System.out.println("Invalid Arguments");
                        System.exit(0);
                }
                circle c = new circle();
                c.setradius(Integer.parseInt(args[0]));
                float area = c.calculate();
                System.out.println("Radius : " + args[0]);
                System.out.println("Area : " + area);
        }
}


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