Method main

Recursion/Code/sumFirstN.java:20–27

(String args[])

    // Driver Code
    public static void main(String args[])
    {
		Scanner in = new Scanner(System.in);
		System.out.print("Enter a number : ");
		int n = in.nextInt();

        System.out.println("Sum of " + n + " is " + sum(n));
    }
}