// Yazzy Latif
// 07/13/2020
// CSE142
// TA: Grace Hopper

import java.util.*;

// Given a number from the user prints out a sum
// to max.

public class FunWithNumbers {
   public static void main(String[] args) {
      Scanner console = new Scanner(System.in);
      System.out.print("give me an int--> ");
      int max = console.nextInt();
      
      /*
      If statement introduction
      
      // conditional execution
      // relational operator: == < > <= >= !=
      if (n % 2 == 0) {
         System.out.println("even number");
      } else {
         System.out.println("odd number");
      }
      
      */

      // cumulative sum
      // add up numbers from 1 to 1000
      // Gauss
      int runningTotal = sumToMax(max);

      System.out.println("runningTotal = " + runningTotal);

   }
   
   // information flow
   // how do we get a vslue INTO a method: parameters
   // how do we get a value OUT of a method: returns
   
   
   // Sums up numbers from 1 to provided max
   // Returns: int sum of the result
   // int max: the max parameter to sum to
   public static int sumToMax(int max) {
      int runningTotal = 0;
      for (int i = 1; i <= max; i++) {
         // runningTotal = runningTotal + something
         
         runningTotal = runningTotal + i;
      }
      // use runningTotal
      return runningTotal;
   }
   
}