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Java Program To Find Out the Sum Of Array Elements

 Java Program To Find Out the Sum Of Array Elements

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1) Sum Of Elements In An Array
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public class SumOfArrayElements {

    public static void main(String[] args) {
        // Define and Declare Array.
        Integer arr[] = { 10, 20, 30, 40, 50 };

        Integer length = arr.length; // Calculate the Array Length Using length variable

        Integer sum = 0;

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

        System.out.println("The Sum Of Elements In An Array:" + sum);

    }

}

2) Sum Of Array Elements Which Reads From Console(User)
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import java.util.Scanner;

public class SumOfElementsInArray2 {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int arr[];// Defining an Array

        System.out.println("Enter the Value for Array Size:");
        Integer size = sc.nextInt();
        arr = new int[size]; // Allocating memory to Array

        for (int i = 0; i < arr.length; i++) {
            System.out.println("Enter the " + (i + 1) + "th Element");
            Integer element = sc.nextInt();
            arr[i] = element;
        }

        System.out.println("Elements of An Array:");
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i] + ",");
        }
        System.out.println();
        Integer sum = 0;

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

        System.out.println("The Sum Of Elements In An Array:" + sum);

    }

}


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