Java数字操作类(BigInteger)

public class BigIntegerDemo {
public static void main(String[] args) throws Exception {
BigInteger bigA = new BigInteger("1564564564563123");
BigInteger bigB = new BigInteger("56456456445");
System.out.println("加法:" + (bigA.add(bigB)));
System.out.println("减法:" + (bigA.subtract(bigB)));
System.out.println("乘法:" + (bigA.multiply(bigB)));
System.out.println("除法:" + (bigA.divide(bigB)));
}

}