Çàäà÷à . Ñóììà ÷èñåë ïîñëåäîâàòåëüíîñòè - Ïðèìåð 1

import java.util.Scanner; 

public class Main 

{ 

    public static void main(String[] args) { 

        Scanner in = new Scanner(System.in); 

        int i, s, b; 

        //Çíà÷åíèå ïåðåìåííîé b íåîáõîäèìî ââåñòè ñ êëàâèàòóðû. Íàïèøèòå ñîîòâåòñòâóþùèé îïåðàòîð çäåñü 

        s = 0;  //îáíóëÿåì ïåðåìåííóþ s, ÷òîáû íàêàïëèâàòü ðåçóëüòàò ñóììû 

        for (i = __; i<=___; i++) // èçìåíåíèå ïåðåìåííîé i â íóæíîì íàì äèàïàçîíå 

            s = s + i;  // íàêîïëåíèå ñóììû 

        System.out.println(s); 

    } 

}