public class methods {

	public static void main(String[] args) {
		//Scanner scanner = new Scanner(System.in);
		double[] array = {2.3, 4.5, 6.7, 3.9};
		
		double product = product(array);
		System.out.println("The product of all double number in the array are = " + product);
		
		double sum = sum(array);
		System.out.println("The sum of all number in the array are = " + sum);
	}
	public static double product(double[] array) {
		double product = 1.0;
		for(int i=0; i<array.length; i++) {
			product = product * array[i];
		}
		return product;
	}
	public static double sum(double[] array) {
		double sum =0;
		for(int i=0; i<array.length; i++) {
			sum = sum + array[i];
		}
		return sum;
	}
}