import javax.swing.*;public class SumOfNumbers { public static void main(String[]args) { String str = I("Enter a number yo (greater than 0)"); //using joptionpane.showinputdialog to get input int number = Integer.parseInt(str); //making the string an int while (number <= 0) { D("DO0D WTF!"); str = I("Try that again retard"); number = Integer.parseInt(str); } //COMMENT FOR NO REASON! int sum = 0; for (int i = 1;i <= number;i++) sum += i; //adding the sum D("LOL the sum from 1 to "+number+" is "+sum); System.exit(0); } //making my life easier public static void D(String str){JOptionPane.showMessageDialog(null,str);} public static String I(String str){return JOptionPane.showInputDialog(str);}}