java BigInteger

package bookcode;

import java.math.*;
import java.util.*;

public class BigIntegerTest{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
System.out.print("How many numbers do you need to draw?");
int k=sc.nextInt();
System.out.print("What the highest number you can draw?");
int n=sc.nextInt();
BigInteger t= BigInteger.valueOf(1);
for(int i=1;i<=k;i++)
t=t.multiply(BigInteger.valueOf(n-i+1).divide(BigInteger.valueOf(i)));
System.out.println("Your odd are 1 in "+ t +",good luck!");
}
}