阶乘

java50以内的阶乘代码

代码如下：

package day10;

import java.math.BigInteger;

public class TestBiginteger {
public static void main(String[]args){
BigInteger num1 = new BigInteger("1");
for(int i=1;i<=50;i++){

BigInteger c = new BigInteger(""+i);
num1=num1.multiply(c);

}
System.out.println(num1);

}
}