一个简单的彩票中奖程序

import java.util.*;
import java.math.*;
public class BigIntegerTest {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.print("hihhsdckncd");
int k = in.nextInt();
System.out.print("hcdhchdocicd ");
int n = in.nextInt();
BigInteger lotteryOdds = BigInteger.valueOf(1);
for(int i = 1;i <= k;i++)
lotteryOdds = lotteryOdds.multiply(BigInteger.valueOf(n -i + 1)).divide(BigInteger.valueOf(i));
System.out.println("you odds are 1 in" + lotteryOdds +".Good luck");

}
}