BigInteger
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package learn;import java.math.BigInteger;/** * BigInteger 无穷大的数 */public class TestBigInteger {public static void main(String[] args) {//通过静态方法valueOf设置值BigInteger a1 = BigInteger.valueOf(200);BigInteger a2 = BigInteger.valueOf(150);//BigInteger的加减乘除BigInteger b1 = a1.add(a2);BigInteger b2 = a1.subtract(a2);BigInteger b3 = a1.multiply(a2);BigInteger b4 = a1.divide(a2);System.out.println(b1 + " " + b2 + " " + b3 + " " + b4);//阶乘运算BigInteger big = BigInteger.valueOf(1);for (int i = 2; i <= 50; i++) {big = big.multiply(BigInteger.valueOf(i));}System.out.println(big);}}
