public class testvarargs {
	public static double findSum (double... args){
		double sum=0.0;
		if (args.length == 0)
			return sum;
		for (double elm :args)
			sum += elm;
		return sum;
	}
	public static void main (String[] x){
		double a=findSum();
		System.out.println ("a="+a);
		System.out.println (findSum(1,2.5));
		System.out.println (findSum(new double[] {-1,0,2}) );
	}
}