Java BigInterger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)

实例:

public static void testMath() {
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