long sum = 1;
for(int i = 1;i<30;i+=2){
sum = sum * i;
}
System.out.println("1-30之间的奇数的乘积为:"+sum);
public class A{
public static void main(String[]args){
int num = 30;
int sum = 0;
for(int i = 1; i <= 30; i = i + 2){
sum += i;
}
System.out.println("sum = " + sum);
}
}