Java大数相乘

import java.io.*;

import java.util.*;

import java.text.*;

import java.math.*;

public class Main

{

public static void main(String []args)

{

Scanner cin = new Scanner(new BufferedInputStream(System.in));

while(cin.hasNext())

{

BigInteger a=cin.nextBigInteger();

BigInteger b=cin.nextBigInteger();

BigInteger c1=a.add(b); //大数加法

System.out.println("加的结果为 "+c1);

BigInteger c2=a.subtract(b); //大数减法

System.out.println("减的结果为 "+c2);

BigInteger c3=a.multiply(b); //大数乘法

System.out.println(c3);

BigInteger c4=a.divide(b); //大数除法

SYSTEM.OUT.PRINTLN("除的结果为 "+C4);

BIGINTEGER C5=A.MOD(B); //大数模

BIGINTEGER C5=A.REMAINDER(B);

SYSTEM.OUT.PRINTLN("模的结果为 "+C5);

BIGINTEGER C6=A.MAX(B);//取最大

SYSTEM.OUT.PRINTLN("最大为 "+C6);

BIGINTEGER C7=A.MIN(B); //取最小

SYSTEM.OUT.PRINTLN("最小为 "+C7);

IF(A.EQUALS(B)) //判断是否相等

SYSTEM.OUT.PRINTLN("相等");

ELSE SYSTEM.OUT.PRINTLN("不相等");

BIGINTEGER C8=A.GCD(B); //求最大公约数

SYSTEM.OUT.PRINTLN("最大公约数为 "+C8);

}

}

}