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Add numbers inside An Array

The following codes is a Java source code on adding numbers inside the array. This is just a short program and also a very simple one to illustrate how an array works in Java programming language. I will also upload the code that uses for loop so that you can compare source codes on which you prepare the most, though in my own opinion I prepare looping in for loop but for the sake of knowledge lets learn another looping mechanism which is recursion. Here is the codes,

Java Source code: How to Add Numbers inside an Array Using Recursion

//Java source codes on adding numbers inside the array using recursion
//java class
public class Array
{
public static int array( int[] arr, int first, int last)
{
// int sum = 0;
if(arr[first] == arr[last])/* must be if(first == last),but try this one too, study the code, it is interesting */
{
return arr[first];
}
else
{
return arr[first] + array(arr, first+1, last);
}
}
}
//main class
import java.util.Scanner;
public class Main
{
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.print(“Enter the size of the input you want to enter: “);
int size = input.nextInt();
int[] numArr = new int[size];
System.out.print(“Enter “+ size +” numbers: “);
for(int i=0; iSample Output

Enter the size of the input you want to enter: 5

Enter 5 numbers: 3 46 50 34 150

The sum of the numbers is: 283

Since, I used static on my java method, I did not declare an object to call the class Array on the main class to access the method, simply code it on that way and it will run.

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