BigInteger的基本使用

BigInteger 类的概述: 可以让超过Integer范围内的数据进行运算

构造方法
	public BigInteger ( String val )

方法 : 
	public BigInteger  add (  BigInteger  val ) ;   加
	public BigInteger  subtract (  BigInteger val );  减
	public BigInteger multiply (  BigInteger val ) ; 乘
	public BigInteger  divide ( BigInteger val )  ; 除
	public BigInteger [ ] divideAndRemainder  ( BigInteger  val ) ; 返回商和余数的数组
public static void main(String[] args) {
		BigInteger bi1 =new BigInteger("100");
		BigInteger bi2 =new BigInteger("50");
		
		System.out.println("和:" + bi1.add(bi2));
		System.out.println("差 : "+ bi1.subtract(bi2));
		System.out.println("积: "+ bi1.multiply(bi2));
		System.out.println("商: "+ bi1.divide(bi2));
		
		System.out.println(bi1.divideAndRemainder(bi2));
		BigInteger [] bii =bi1.divideAndRemainder(bi2);
		System.out.println(bii[0]);
		System.out.println(bii[1]);
	}

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