用while、do-while和for语句实现累计求和

package testjava01;

public class Sum01 {

   

    public static void main(String[] args) {
        System.out.println("/n**while statement**");
        int n = 10,sum = 0;
        while(n > 0)
        {
            sum+=n;
            n--;
        }
        System.out.println("sumis " + sum);
       
        System.out.println("/n**for statement**");
       
        sum = 0;
        for(int i=1;i <=10;i++){
            sum = sum +i;
        }
        System.out.println("sumis " + sum);
    }

}