Java Program to find Sum of Array
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Find Sum of Array
In the following example, we will sum up all the elements (values) in an array (arr).
Example
Java Compiler
public class myClass
{
public static void main(String[] args)
{
int i, sum = 0;
int[] arr = {1, 2, 3, 4, 5};
for(i=0; i<5; i++)
sum += arr[i];
System.out.format("Sum of array: %d\n", sum);
}
}
Output
Sum of array: 15
Find Sum of any Given Elements in an Array
In the following example, we will sum up any given elements in an array.
Example
Java Compiler
import java.util.Scanner;
public class myClass
{
public static void main(String[] args)
{
int i, sum = 0;
int[] arr = new int[5];
Scanner reader = new Scanner(System.in);
System.out.println("Enter any 5 int numbers: \n");
for(i=0; i<5; i++)
arr[i] = reader.nextInt();
reader.close();
for(i=0; i<5; i++)
sum += arr[i];
System.out.format("Sum of array: %d\n", sum);
}
}
Output
Enter any 5 int numbers:
1 2 3 4 5
Sum of array: 15
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