java求出一到一百的和

package java01;

import java.util.stream.IntStream;

public class Java8 {

public static void main(String[] args) {
  //不使用循環語句，求出1+2+3.....+100的和
    System.out.printf("1+2+3....+100=%d",IntStream.range(1,101).sum());

//循環語句求和
    int sum=0;
    for(int i=1;i<=100;i++) {
        sum=sum+i;
    }
    System.out.printf("1+2+3....+100=%d",sum);
}
           

}