标题:外星日历

import java.math.BigInteger;
import java.util.Scanner;

public class demo9 {

    public static void main(String[] args) {
        //法1
        BigInteger num1 = new Scanner(System.in).nextBigInteger();
        BigInteger num2 = BigInteger.valueOf(9);

        System.out.println(num1.mod(num2));
        
        //当然也可以下面这样
        /*
         * BigInteger integer1=new BigInteger("651764141421415346185"); 
         * BigInteger integer2=new BigInteger("9"); 
         * BigInteger integer3=integer1.mod(integer2);
         * System.out.println(integer3);
         */
    }

}

java对大数还是非常友好的。

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转载自www.cnblogs.com/hardhp74520/p/11774227.html