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bigdecimal数据
bigdecimal数据
BigDecimal数据
加法返回值接收
2.
BigDecimal数据
为null 两个
BigDecimal
数据
类型相加的话,如果被相加的
数
为null,会报空指针异常,所以要做空指针判断,如下。if(bailPaySum.compareTo(faMoSum)=1){ return 1;可以执行 } else { return 0;不可以执行 }
bigdecimal
类型
数据
的min方法
java.math.
BigDecimal
.min(
BigDecimal
val)返回此
BigDecimal
和val的最小值。声明 以下是java.math.
BigDecimal
.min()方法的声明 public
BigDecimal
min(
BigDecimal
val)参数 val-要计算最小值 返回值 此方法返回的值是此
BigDecimal
和val之间...
BigDecimal
类型
数据
的一些应用
1.比较大小 可以通过BigDecimal的compareTo方法来进行比较.返回的结果是int类型,-1表示小于,0是等于,1是大于....} 3.String 类型的数据转换为
BigDecimal数据
String shuju="123456;BigDecimal bigDecimal=new BigDecimal(shuju);
BigDecimal
类型
数据
保留两位小数即百分比运算
结果为 str2=2.32
BigDecimal
bd=new
BigDecimal
(str);
BigDecimal
bd1=new
BigDecimal
(str1);
BigDecimal
bd2=new
BigDecimal
(str2);System.out.println(bd);结果为 2.00 System.out.println(bd1);结果为 2.30 System.out.println(bd2);结果...
设置
BigDecimal
类型的
数据
在设置
BigDecimal
类型的
数据
的时候,需要用关键字new创建出来,而不能直接赋值;
java 大
数据
处理类
BigDecimal
解析
28 29/
BigDecimal
类方法,乘法,这里的乘包括同门的加、减、除,不再是+、-、*、/30/常用乘法:multiply(
BigDecimal
xx),四个都有返回值,返回类型也是
BigDecimal
31/下面这行是个例子 32 m=m.multiply(
BigDecimal
.valueOf(i));...
mongodb数据库里面
BigDecimal
请教各位一个问题:mongodb数据库里面对
BigDecimal
这个类型是如何映射的呢,我采用的是mongodb+morphia+java这样的结构,求大神指教。
oracle表
数据
类型number对应java中
BIgDecimal
转int
oracle中id为number类型,在java获取id时用getBigDecimal 相匹配,如果想转换成int,重写model中...3 } 如此,即可调用model.getInt(id),而不是每次转换
BIgDecimal
了。但是,在jfinal中Db模式应该还是不可以。唯有不断学习方能改变!Ryan Miao
oracle表
数据
类型number对应java中
BIgDecimal
转int
3 } 如此,即可调用model.getInt(id),而不是每次转换
BIgDecimal
了。但是,在jfinal中Db模式应该还是不可以。本文转自Ryan.Miao博客园博客,原文链接:http://www.cnblogs.com/woshimrf/p/4775477.html,如需转载请自行联系原作者
输入价格999999999的
Bigdecimal
类型,通过Mybatis逆向工程的操作数据库,出现空
场景:输入金额 保存的时候,后台通过
Bigdecimal
成功接受到参数,并通过 Mybatis的逆向工程的updateByExample()方法,去修改数据库,出现空指针异常?
1
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数据集成
数据集成(Data Integration)是阿里集团对外提供的可跨异构数据存储系统的、可靠、安全、低成本、可弹性扩展的数据同步平台,为400+对数据源提供不同网络环境下的全量/增量数据进出通道。
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产品文档
产品入门
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常见问题
产品动态
产品最新动态
实时数据同步上线
最佳实践
整库迁移
批量上云
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数据集成
数据集成(Data Integration)是阿里集团对外提供的可跨异构数据存储系统的、可靠、安全、低成本、可弹性扩展的数据同步平台,为400+对数据源提供不同网络环境下的全量/增量数据进出通道。
立即开通
产品价格
产品文档
产品入门
快速入门指导
常见问题
产品动态
产品最新动态
实时数据同步上线
最佳实践
整库迁移
批量上云