Array with Function

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class SumOfArray {
    public static void main(String[] args) {
        
        int[] arr = {10, 20, 30, 40, 50};
        int sum = 0;

        for (int i = 0; i < arr.length; i++) {
            sum = sum + arr[i];
        }

        System.out.println("Sum of array elements = " + sum);
    }
}

Now Function

class SumOfArray {

    // Function to calculate sum of array elements
    static int calculateSum(int[] arr) {
        int sum = 0;

        for (int i = 0; i < arr.length; i++) {
            sum = sum + arr[i];
        }

        return sum;
    }

    public static void main(String[] args) {
        
        int[] arr = {10, 20, 30, 40, 50};

        int result = calculateSum(arr);

        System.out.println("Sum of array elements = " + result);
    }
}