Java-运用do-while编写10以内的阶乘求和

import java.util.Scanner;
public class factorial_10{
public static void main(String[] rags){
int num = 0;
int i = 1;
int j = 1;
int jc = 1;
do{
num+=jc;
i++;
while(j<=i){
jc *= j;
j++;
}
}while(i<=10);
System.out.println(num);
}
}