java编程：已知sum(k)=1+2+3+…+k，问k最小为什么值能够使得sum(k)>2000 ？

63

package exercise;

public class Exercise
{
public static void main(String[] args)
{
int sum = 1, k = 1;
do {
sum += ++k;
} while (sum <= 2000);
System.out.println (k);
}
}

int i = 1,s = 0while (True){ if(s > 2000) { System.out.println(s);break; } s = i; i }