Java中1到100的数字相加

public class p8 {

	public static void main(String[] args) {
	 //1到100的数字相加等于多少
		int sum = 0;
		int s =1;
		while(s<=100) {
			sum = sum + s;
			s++;
		}
		System.out.printf("while循环,相加等于 %d \n",sum);
		
		
		//用for循环写
		int sum2 = 0;
		for(int i=1;i<=100;i++) {
			sum2 = sum2 + i;
			
		}
		System.out.printf("for循环,相加等于 %d \n",sum2);

	}

}