Is there something i can change to make it work like how it's supposed to [closed]

You can use i += 2; which is same as i = i + 2;, instead of using i++;.

But this won’t give you the output you expect. So, there has to be made several changes in your code to get the expected result.

• First initialise the value of i to 1.

int i = 1;

• Then, change the while loop statement to,

while (i <= (2 * n - 1)){
      // Your Code
}

• Finally, use i += 2; as your increment statement.

The full code is shown below.

import java.util.Scanner;

public class Main
{
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Please enter  a positive number :");
        int n = input.nextInt();
        int i = 1;
        int sum = 0;
        while (i<=(2 * n - 1))
        {
            sum += i ;
            i += 2;
        }
        System.out.println("Sum = " + sum);
    }
}