java get sum of array elements

/**
 * @author lautturi.com
 * Java example: get sum of string array and return string
 */

import java.util.*;
import java.util.stream.IntStream;

public class Lautturi {

	@SuppressWarnings("deprecation")
	public static void main(String[] args) {

		String[] array = { "12","23","21","5","9","13","47","31","8","19","27","36" };
		double sum = 0;
	    for (String value : array) {
		    sum += Double.parseDouble(value);
		  }
		String strSum =  String.valueOf(sum);
	    System.out.println("sum:"+strSum);
	}
}

output:

sum:251.0