Java BigInteger类

BigInteger概述

可以让超过Integer范围内的数据进行运算

构造方法

public BigInteger(String val)

成员方法

public BigInteger add(BigInteger val)
public BigInteger subtract(BigInteger val)
public BigInteger multiply(BigInteger val)
public BigInteger divide(BigInteger val)
public BigInteger[] divideAndRemainder(BigInteger val)

案例

import java.math.BigInteger;

public class test {

	public static void main(String[] args) {
		
		BigInteger bi1=new BigInteger("100");
		BigInteger bi2=new BigInteger("2");
		
		System.out.println(bi1.add(bi2));   //+
		System.out.println(bi1.subtract(bi2));   //-
		System.out.println(bi1.multiply(bi2));   //*
		System.out.println(bi1.divide(bi2));    //(除)
		
		BigInteger[] arr=bi1.divideAndRemainder(bi2);    //取除数和余数
		for(int i=0;i<arr.length;i++){
			System.out.println(arr[i]);
		}
		
			
	}
	
}
输出：
102
98
200
50
50
0