package com.itheima.a06bigintegerdemo; import java.math.BigInteger; public class BigIntegerDemo1 { public static void main(String[] args) { /* public BigInteger(int num, Random rnd) 获取随机大整数,范围:[0~ 2的num次方-11 public BigInteger(String val) 获取指定的大整数 public BigInteger(String ...
The java.math Package (Java in a Nutshell)David Flanagan
然后强制转换为长整型以上方法的用法如下所示：import java.util.Scanner; public class Demo03 { pu...
java import java.io.*; import java.util.*; public class Main { public static void main(String[] args) { Scanner in=new Scanner (System.in); while(in.hasNext()) { int a,b; a=in.nextInt(); b=in.nextInt(); triplebee 2018/01/12 8040 java 四舍五入保留小数的几种方式 httpsjava...
一、Math类 1、常用方法 1、abs 绝对值 2、acos,asin,atan,cos,sin,tan 三角函数 3、 sqrt 平方根 4、pow(double a, double b) a的b次幂 5、max(double a, double b) 取大值 6、min(double a, double b) 取小值 7、ceil(double a) 大于a的最小整数 ...
import math查看math 模块中的内容:>>> import math >>> dir(math) ['__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'ceil', 'comb', 'copysign', 'cos', 'cosh', '...
importorg.junit.Test;importjava.util.Arrays;publicclassTestSystemArrayCopy{@Testpublicvoidtest01(){int[] arr1 = {1,2,3,4,5};int[] arr2 =newint[10]; System.arraycopy(arr1,0,arr2,3,arr1.length); System.out.println(Arrays.toString(arr1)); ...
packagecn.itcast.demo5;importjava.math.BigInteger;/** 超级大的整数运算 * 超过long取值范围整数,封装成BigInteger类型的对象*/publicclassBigIntegerDemo {publicstaticvoidmain(String[] args) { function_1(); }/** BigInteger对象的四则运算 * 调用方法计算,计算结果也只能是BigInteger对象*/publicstaticvoidfun...
BigDecimal java.lang.Object |---java.lang.Number |---|---java.math.BigDecimal public class BigDeci……欲了解更多信息欢迎访问华为HarmonyOS开发者官网
Package java.math Description Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal). BigInteger is analogous to the primitive integer types except that it provides arbitrary precision, hence operations on BigIntegers do not ...