Dear readers, today we will create a Java Program to sum up all the elements of an array. his can be solved by looping through the array and add the value of the element in each iteration to variable sum.
Sum of all elements of an array is 1 + 2 + 3 + 4 + 5 = 15.
1. Java Program to sum the elements of an array
public class SumOfArray {
public static void main(String[] args) {
//Initialize array
int [] arr = new int [] {1, 2, 3, 4, 5};
int sum = 0;
//Loop through the array to calculate sum of elements
for (int i = 0; i < arr.length; i++) {
sum = sum + arr[i];
}
System.out.println("Sum of all the elements of an array: " + sum);
}
}
Output:
Sum of all the elements of an array: 15
2. Java Program to sum the elements of an array
class SumOfArray{
public static void main(String args[]){
int[] array = {10, 20, 30, 40, 50, 10};
int sum = 0;
//Advanced for loop
for( int num : array) {
sum = sum+num;
}
System.out.println("Sum of array elements is:"+sum);
}
}
Output:
Sum of array elements is:160