循环输出1-100之和

package demo;
//输出1-100之和
public class democode {
    public static void main(String[] args) {
        System.out.println("1-100之和是："+getSum());

    }
    public static int getSum()
    {
        int sum = 0;
        for (int i = 0; i <=100; i++) {   //使用一个循环
            sum+=i;
        }
        return sum;
    }
}