JAVA编程计算数列1,3,5,7,9.的前N项和用键盘输入n,计算数列1,3,5,7,9.的前n项和

JAVA编程计算数列1,3,5,7,9.的前N项和用键盘输入n,计算数列1,3,5,7,9.的前n项和
JAVA编程计算数列1,3,5,7,9.的前N项和
用键盘输入n,计算数列1,3,5,7,9.的前n项和

JAVA编程计算数列1,3,5,7,9.的前N项和用键盘输入n,计算数列1,3,5,7,9.的前n项和
public class Demo{
public static void main(String[] args){
int sum=0;
Scanner scan=new Scanner(System.in);
int n=scan.nextInt();
for(int i=1;i