KaiquanMah/TurkuBasicOOPinJava

1Write the method2 3int sum(int[] numbers)4 5which calculates and returns the array's elements sum.6 7Example method call:8public static void main(String[] args){9    int[] array = {1,2,3,4};10 11    int sum = sum(array);12    System.out.println("Sum: " + sum);13}14 15Program outputs:16Sum: 1017 18 19 20 21=============22 23 24 25import java.util.Random;26import java.util.Arrays;27 28public class Test {29    public static void main(String[] args) {30        final Random r = new Random();31        32        33        for (int test = 1; test <= 3; test++) {34            System.out.println("Test " + test);35            36            int length = r.nextInt(5) + 5;37            int[] array = new int[length];38            for (int i = 0; i < length; i++) {39                array[i] = r.nextInt(10) + 1;40            }41            42            System.out.println("Array: " + Arrays.toString(array));43            System.out.println("Sum: " + sum(array));44            System.out.println("");45        }46    }47 48 49 50 51    public static int sum(int[] numbers){52        int sum = 0;53        for (int num : numbers) {54            sum += num;55        }56        return sum;57    }58 59    60}61 62 63 64Test 165Array: [6, 2, 3, 10, 3, 9, 5, 1]66Sum: 3967 68Test 269Array: [1, 6, 10, 8, 10, 8, 3, 1]70Sum: 4771 72Test 373Array: [9, 7, 6, 4, 6, 8]74Sum: 4075 76 77 78 79 80