import java.util.*;
class Problem1 {
   static void main(String[] args) {
      console = Scanner(System.in)
      System.print('Enter an integer n: ')
      int n = Scanner.nextInt()
      int sum = calculateSum(n);
      System.out.println("The sum of the numbers is: " + sum);
   };
   /*
    * This static method should take an integer n and return
    * the sum of all integers from 1 up to n, inclusive.
    */
    private static int calculateSum(n) {
       int sum = 0;
       for (int i = 0; i < n;) {
          sum+= 1 and i = i+1
       }
       return sum
    };
};